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Rhubarb and Custard Traybake

about 12 Portions
Easy
80 minutes
Combine these two classical taste combinations into this delicious sweet treat. Perfect for sharing.
This nostalgic flavour combination is delightful in this simple to make, indulgent traybake. Everyone will want a slice so be sure to bake up enough!
Recipe Ingredients
How to Prepare
Tips
Reduce down the leftover rhubarb juices until reduced by half. Use as a drizzling syrup on pancakes or freeze in ice-cube trays and add to drinks.
Tips
Loved this dessert? Check our Terrific Traybakes. From Flapjack to Millionaire's Shortbread recipes.
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Recipe Ingredients

For the Base
250 gPlain Flour
6 gDr. Oetker Baking Powder
200 gCaster Sugar
125 gUnsalted Butter cold and cut into cubes
1Medium Egg
1 mlWater 1 tbsp
For the Filling
90 mlWater
125 gCaster Sugar
800 gRhubarb cut into 6cm lengths
1 tspDr. Oetker Madagascan Vanilla Extract
1Egg Yolk
3Medium Eggs
250 mlDouble Cream

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Picture - Dr. Oetker Baking Powder
Picture - Dr. Oetker Madagascan Vanilla Extract
1

For the base; mix the flour, Baking Powder and 200g of the sugar, rub in the butter with your fingertips until it resembles fine breadcrumbs. Beat one of the eggs with 1tbsp of water then mix in using a butter knife. Then, without overworking, bring the mixture together with your hands to make a smooth dough. Cover and leave in the fridge for 30 mins.

2

For the filling; in a wide pan bring 90ml of water mixed with 50g of sugar to the boil, reduce to a simmer then add the rhubarb in a single layer (you may need to do two batches), cover and cook for 3-4 mins until just tender. Remove with a slotted spoon and set aside on a plate to cool. In a jug mix the rest of the sugar, the eggs and yolk, cream and Vanilla Extract until just combined, set aside.

3

Heat the oven to 180C, 160C fan, gas 4. Grease a 20cm x 30cm tray or brownie tin. Take a sheet of baking parchment big enough to line the whole tin, trace the base of the tin in the middle then roll the dough out to cover it. Trim and reserve the excess pieces of dough. Snip from the tip of the parchment to the tip of the dough in each corner then set into the tin, tidy up the parchment and gently press the dough to the edges. Bake for 20 mins.

4

Turn the oven down to 150C, 130C fan, gas 2. Carefully press strips of the reserved dough all along the edges of the tin to seal in the dough after any shrinkage from baking. Scatter the rhubarb on top of the dough and pour over the custard. Bake for 40 mins or until the centre is set but with a slight wobble. Cool for at least 30 mins.

Tips

  • Reduce down the leftover rhubarb juices until reduced by half. Use as a drizzling syrup on pancakes or freeze in ice-cube trays and add to drinks.
  • Loved this dessert? Check our Terrific Traybakes. From Flapjack to Millionaire's Shortbread recipes.