Rhubarb & Custard Mille-Feuille

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Patisserie Makes Perfect | Rhubarb & Custard Mille-Feuille

Last week I posted a question on my Facebook Page asking other bakers whether they thought French butter was better for baking with than our British butter. The result was a resounding yes, apparently the amount of water contained in French butter is much lower than our butter, it’s even been a topic of discussion on David Lebovitz’s blog. For this recipe I decided to spend the extra money and use French butter to make my puff pastry. I did this partly because I was curious if it would make the bake taste any better, but also because this is not the first time I’ve made Mille-Feuille on the blog and I wanted to do a comparison.

If you don’t want to buy French butter, the other thing you can do is opt for a butter that is 82% fat or above, some value butters will not state how much fat is contained within them, I assume this is because they have a larger amount of water in them to keep the price down. I purchased my French butter from Waitrose, but I’m sure you could get it from other supermarkets, this is just my closest supermarket.

I have to admit that the French butter really did make a difference to my pastry, it was crumblier in texture than our butter and this is probably the best batch of puff pastry that I’ve ever made. It was easy to incorporate into the pastry and when cooked, it had a really creamy and rich taste and crunch to it. Give it a try next time you make puff pastry, I think you’ll be pleasantly surprised.

This was a week of new ingredients for me, this was the first time I’ve ever cooked rhubarb. Shock horror I know, but wait I have an explanation. Rhubarb crumble is one of my Mum’s favourite puddings and when we used to get huge bunches of rhubarb donated, it all immediately found its way into a crumble and then into the freezer to keep us stocked up in the winter months. I know what you’re thinking, what era did I grow up in? It wasn’t the 1960s, it was actually the 1990s. However the freezer was a staple in our house and it was the source for around 85% of our evening meals. The rhubarb that went into these crumbles wasn’t the bright pink forced kind, it was the tough, sour, green, stringy stuff that looked like a not so distant relative of celery. Needless to say I wasn’t keen and I avoided the crumbles quite successfully.

From following other food blogs, I saw that so many bloggers over the last few weeks were coming up with lots of interesting ways to use forced rhubarb, it occurred to me I must be missing out on something delicious, if everyone else is cooking with it. That is how I came up with the idea of this Rhubarb & Custard Mille-Feuille.

Patisserie Makes Perfect | Rhubarb & Custard Mille-Feuille

Part of the reason I wanted to make these, was not just to use rhubarb for the first time, but because I had an image in my head of the garish pink and yellow icing and I just knew I had to make it.

Rhubarb & Custard is a classic combination and it reminds me of two things, the hard-boiled sweet with it’s tangy rhubarb half and it’s sweet and creamy custard half and a cartoon I watched growing up of the same name. Mille-feuille translated means a thousand leaves and it refers to all of the different layers in the puff pastry that are created by the rolling and folding method of incorporating the butter into the pastry.

I roasted my rhubarb, using a Rachel Khoo recipe, when it was cooked, it had produced the most wonderful pink syrup, I reserved this liquid and used it to make my icing, so that there is a faint rhubarb hint to the icing. This also colours the icing a lovely pale pink, so you could use the icing that colour, but I knew I wanted something much more vibrant. The final component to this recipe is a rich vanilla creme patissiere, speckled with tiny black vanilla seeds throughout.

The rhubarb still retains some of it’s tartness and mixes so well with the sweetness of the creme patissiere and the fondant icing. When picking your rhubarb try to get the pinkest stalks you can as this contrasts really well against the creme patissiere.

The fondant icing was something new for me also, normally when making mille-feuille, I’ve purchased fondant icing ready made and heated it up with a little water to make a gloopy icing and spread that over the top of the finished pastry. I have however found fondant icing sugar by Tate & Lyle. This is really easy to work with, much simpler than my other method and it produces a really glossy icing, I’ll be tempted to use this for any future bakes that need icing or glazing.

Patisserie Makes Perfect | Rhubarb & Custard Mille-Feuille

I have made one tweak to the recipe, a mille-feuille is normally made as one large gateau and then cut into portions. I didn’t realise how fibrous rhubarb was, even when it’s cooked to the point of almost melting. The pastry knife I was using couldn’t cut through the rhubarb and it was dragging it from the pastry layers. The change I have added to the recipe is to cook your rhubarb whole and then cut it to size when you assemble the pastry, this should make slicing the finished pastries much easier.

Sorry about the shocking quality of the picture below, but it’s an action shot(!) detailing how the mille-feuille is assembled before it is cut into portions. Patisserie Makes Perfect | Rhubarb & Custard Mille-FeuilleI was able to get 7 pastries out of this batch, but it should be capable of making eight and the cutting of the rhubarb should help with this. If you’d like to make these Rhubarb & Custard Mille-Feuille yourself, the recipe is here. Don’t be too put off by the long list of details, I made my pastry over 2 days and the creme patissiere was also made a day in advance. The beauty of so many of these patisserie recipes is that the components can be made over a few days and then assembled at a later date.

RHUBARB & CUSTARD MILLE-FEUILLE
Author: 
Recipe type: Patisserie
Prep time: 
Cook time: 
Total time: 
Serves: 8
 
A delicious rich, buttery puff pastry sandwiched with layers of creme patissiere and poached rhubarb. Topped off with fondant icing. This puff pastry makes enough for two recipes, so you can either halve the recipe or freeze the other half of the pastry for use at a later date. It will be fine in the freezer for around 3 months. It's much more worthwhile making puff pastry like this as it's quite a time consuming process.
Ingredients
  • ***PUFF PASTRY***
  • 335g Unsalted Butter
  • 85g Unsalted Butter
  • 250g Plain Flour
  • 250g Strong White Flour
  • 265ml Cold Water
  • 10g Fleur de Sel
  • ***CREME PATISSIERE***
  • ½ Vanilla Pod (or 2tsp Vanilla Extract)
  • 250ml Milk
  • 60g Granulated Sugar
  • 25g Cornflour
  • 3 Egg Yolks (about 60g)
  • 25g Butter
  • ***ROASTED RHUBARB***
  • 8 Stalks Pink Forced Rhubarb (approx 400g)
  • 50g caster sugar
  • ***TO DECORATE***
  • 225g Fondant Sugar
  • 4 Tbsp Reserved liquid from the roasted rhubarb.
  • Yellow and Pink Food colouring
Instructions
  1. ***PUFF PASTRY***
  2. Gently melt the 85g butter in a saucepan and let it cool.
  3. Sift the flour into the bowl of a stand mixer and add the water, butter and fleur de sel.
  4. Beat at a low speed with a dough hook attachment until the dough is smooth and fairly firm, this will take around 3 minutes.
  5. Flatten the dough into a square shape, cover in cling-film and leave to rest for at least 2 hours.
  6. Take the remaining 335g of butter and place it between two sheets of greaseproof paper, roll the butter into a square around 13/15cm or a thickness of about 1cm. Wrap the butter in greaseproof paper and place it back in the fridge.
  7. Roll the dough out into a square about 1cm thick, arrange the rolled out butter in the middle so that it looks like a diamond.
  8. Fold the corners of the pastry into the centre of the butter like an envelope and make sure all of the butter is covered.
  9. Run the rolling pin over the edges to smooth the surface, then roll the dough into a rectangle about 8-9mm thick, fold the top edge down two thirds, fold the bottom edge up to cover the top, so that it mimics a letter.
  10. Cover the pastry in the cling-film and return to the fridge for 10 minutes.
  11. Take the pastry out of the fridge and arrange it on a floured surface with an open edge facing you, roll the dough into a rectangle about 8-9mm thick.
  12. Fold the dough into thirds like a letter and place it back in the fridge for 2 hours.
  13. Repeat the last two steps twice more at 2 hour intervals, rolling out the dough and folding it like a letter.
  14. ***CREME PATISSIERE***
  15. To make the creme patissiere, split the vanilla bean lengthwise and scrape out the seeds.
  16. Bring the milk, vanilla pod and seeds or extract to a boil in a saucepan over a medium heat.
  17. Remove from the heat and let infuse for 10 minutes.
  18. Meanwhile combine the sugar and cornstarch in a medium bowl. Add the egg yolks.
  19. Whisk just until the sugar is combined, do not let it get too pale.
  20. Whisk a third of the milk into the egg mixture to loosen it.
  21. Whisk in the remaining milk and return the mixture to the saucepan, straining it through a fine sieve and cook over a medium heat, whisking constantly.
  22. As soon as the pastry cream begins to thicken, remove it from the heat.
  23. Whisk in the butter until smooth.
  24. Scrape the pastry cream into a bowl and cover with a layer of clingfilm, pressing it down so it touches the surface of the cream. This will stop a skin forming.
  25. Allow to chill completely.
  26. ***ROASTED RHUBARB***
  27. Preheat the oven to 180C Fan, trim the rhubarb to lengths no less than 30cm (where possible) toss the rhubarb in the caster sugar and place in a small baking dish or roasting tray, cover it with foil and place it in the oven on a shelf for 25 minutes. The rhubarb should be tender but not mushy. Leave to cool.
  28. ***COOK THE PASTRY***
  29. Line two baking trays with greaseproof paper. You will need 4 trays in total because a tray needs to be set on the dough to stop it puffing up too much whilst cooking.
  30. Weigh the dough and cut off 400g, put the rest in the freezer and use it at a later date (it will last up to 3 months).
  31. Roll out the remaining dough into a rectangle 40 by 30cm. Roll out the dough evenly without trying to reach the desired length in one go. Then roll crosswise , alternate the rolling until the desired dimensions are achieved. If the dough seems elastic give it time to settle on the worktop for a few minutes before rolling it out again.
  32. Cut the pastry into three 30 x 13cm lengths, use a rolling pin to transfer the pastry to the prepared baking sheets. Prick the pastry all over with a fork and sprinkle it with sugar to help it caramelise.
  33. Lay a piece of greaseproof paper on top of the pastry and sit a tray of the same size on top. Place the pastry in the oven and cook for 20-25mins until the pastry is golden. You may need to rotate the pastry during cooking.
  34. When cooked, take the trays and the greaseproof paper off the pastry and leave to cool on the trays for a few minutes, before resting the pastry on a cooling rack.
  35. ***ASSEMBLE THE MILLE-FEUILLE***
  36. Take the bottom layer of pastry and place it on a piece of greaseproof paper (this will make clean up easier), Cut the rhubarb into lengths around 3.75cm long and lay them end to end in four lines on the bottom layer of the pastry, with space between the lines to allow for the creme patisserie. The reason behind this is that the rhubarb doesn't cut well, this will make cutting the finished pastry much easier.
  37. Pipe 5 lines of creme patissiere on the bottom layer, making sure this makes up the sides and piping in between the rhubarb.
  38. Lay another piece of pastry on top and then repeat with the remaining rhubarb cut into 3.75cm lengths and the remaining creme patissiere.
  39. Lay the final layer of pastry on top and prepare the icing to decorate the top. Sift the fondant icing sugar and add 4 Tbsp of the reserved liquid from the rhubarb, if you don't have this much liquid just use water. Stir the icing until it is the text of thick cream and everything is combined.
  40. Take some of the icing and place it in a small bowl, add some yellow food colouring to this icing and mix well. Put this icing in a piping bag with a very thin nozzle, or use a disposable bag and cut a very thin nozzle.
  41. Add pink (or a small amount of red) food colouring to the remaining icing and stir well to combine. Pour the pink icing over the top of the mille-feuille and use a palette knife to spread the icing evenly.
  42. Take the yellow icing in the piping bag and pipe long thin lines across the length of the pastry. Using a cocktail stick, pull it back and forth through the icing to create the desired feathering on the cake.
  43. Leave the icing to set for around 15-20mins before attempting to cut it. Using a serrated pastry knife try to line the knife up with your lengths of rhubarb and cut the pastries into 3.75cm sized slices. The rhubarb doesn't cut well with the serrated knife, so that is why the pieces of rhubarb were trimmed.
  44. The slices will need to be kept in a fridge and need to be eaten within 48 hours before the pastry gets too soggy or the fondat icing begins to melt.
Patisserie Makes Perfect | Rhubarb & Custard Mille-Feuille Are you a fan of rhubarb? If so, try making this delicious rhubarb syrup by Super Golden Bakes, or this rhubarb and rose charlotte by Twigg Studios. See I told you, rhubarb is everywhere!

Thanks for reading.

Angela
#CookBlogShare

I’ve added this to #PerfectingPatissiere with Lucy from BakingQueen74 and Kevin from The Crafty Larder. I’ve also added it to Fabulous Foodie Fridays.

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I’ve also added to the CakeyBoi‘s and Kat The Baking Explorer‘s Treat Petite.

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23 Responses

  1. Lucy @ Bake Play Smile

    This is absolutely beautiful. Gosh you are so talented!! It would be so hard cutting this so perfectly – great job!! Thanks so much for linking up with Fabulous Foodie Fridays! Have a great weekend xx

  2. This is really special. I yummed and pinned this recipe. I actually have to make a MF for a family dinner event, so I am going to keep this in mind!

    • Thanks so much Sara – I’m so pleased you like it. if you do make this, I would recommend cutting your rhubarb to size as even though it was really soft, I struggled to cut the mille-feuille cleanly as the rhubarb wouldn’t co-operate!

  3. Beautiful millefeuilles and recipe! Very neatly cut too, which isn’t easy! Love the colours too! 🙂

    • Thanks Lili, you’re absoutely right, cutting them was very nerve-racking. I’m so pleased with how they turned out though. Thanks for the lovely comments.

  4. Kat Buckley

    Wow these are stunning! What a fabulous Treat Petite entry.

  5. Cakeyboi

    These are gorgeous! Thanks for entering them into Treat Petite. I LOVE that vivid icing atop!

  6. Sarah James

    Your Rhubarb & Custard Mille-Feuille looks stunning. It’s funny, the pastry I make in the UK doesn’t turn out so well, I spend 6 months of the year in Brittany & bake with local butter, the mystery is solved! Thanks for sharing 🙂

    • I’m glad I could be of help Sarah. The cronuts I featured on the blog this week were made with Lurpak (which is apparently 82% fat), they tasted great, but the texture of the butter was very different to the French butter I used for this. I’ll have to try a high quality English butter for my next batch of puff pastry and report my findings. Glad you enjoyed the blog post.

  7. Lucy - BakingQueen74

    Your rhubarb millefeuille look just beautiful Angela. The colour of the icing is great, I must look for fondant icing sugar. I think I will use your method to make the pastry as doing it over two days does appeal to me. 🙂
    Thanks so much for entering #PerfectingPatisserie!

    • The icing is so garish isn’t it 🙂 The thing with pastry is that it has quite a long shelf-life and keeping it in the fridge for a day isn’t going to do it any harm. Also the longer it’s chilled the easier it is to work with.

      Thanks for setting up #perfectingpatisserie

  8. This looks wonderful Angela, I bet it tastes absolutely amazing I love rhubarb so I know Id love these.

  9. Jodie Dodd

    I cannot wrap my head around rhubarb. I’ve never had it and it seems like it should be in my salad, not incorporated into bakery. But it seems it’s used quite often in baking. Who knew?! And I had no idea there were so many types of butter! I know my grocery store sells the cheap kind along with a higher quality butter but I never knew there was such a huge difference. I love the shocking pink icing, it would be perfect for Easter!

    That bottom crust looks great, no soggy bottom for you! 😀 xx

    • The world of butter is crazy! So much different types and I had no idea it made such a difference until I started reading about it! The icing was one of my favourite parts of this too! You’re correct about the soggy bottom 😉 I love that you’ve been watching GBBO! Rhubarb is a strange ingredient, but actually surprisingly tasty.

  10. Lucy Parissi

    Mille feuille used to be my absolute favourite dessert growing up. We had a fantastic Patisserie we used to go to every time we visited my friend Ellie. I still dream about them! Yours look ever more amazing if that’s even possible. I would SO love to taste them but your photos go a long way towards sharing them with my eyes. Drool!

    • I love them too. I remember eating them and the custard splurging out the sides. Also the pattern on the top just seemed like magic to me! These tasted so good Lucy. x

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