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Rhubarb Crumble Cake

Rhubarb Crumble Cake

  • Author: Tastebotanical
  • Prep Time: 15
  • Cook Time: 60
  • Total Time: 1 hour 15 minutes
  • Yield: 1 loaf cake (Serves 6-8) 1x
  • Category: Cake
  • Method: Baking
  • Cuisine: English


This quick and easy Rhubarb Crumble Cake is filled with juicy fruit and has a delicious crunchy topping.



For the rhubarb:

  • 1 stem of fresh rhubarb
  • 2 tablespoons of caster sugar

For the cake:

  • 125 g butter
  • 175 g caster sugar
  • 2 eggs
  • 175 g self-raising flour
  • 4 tablespoons of milk
  • Vanilla extract

For the crumble topping:

  • 25 g butter
  • 40 g flour
  • 25 g sugar

Rhubarb Crumble Cake




  1. Set your oven to 180 degrees centigrade or Gas Mark 4.
  2. Cover a baking tray with foil.  Cut the rhubarb stem into small pieces (approximately 1 cm) and spread the pieces out on the tray.  Sprinkle with 2 tablespoons of caster sugar.  
  3. Put the rhubarb in the oven and roast for 15 minutes.  When done, remove and set aside to cool.  You can taste a piece of the rhubarb and add a little more sugar if you think this is needed.
  4. Grease a 450 g loaf tin and line the bottom with baking parchment.
  5. Cream the butter with the sugar.  (I usually soften the butter for about 30 seconds in the microwave first as it makes it much easier.)
  6. Gradually add the eggs to the butter and sugar mixture.  If it looks as if it is going to curdle, add some of the self-raising flour.
  7. Once the eggs have been incorporated add the rest of the self-raising flour.
  8. Add the milk and vanilla extract.
  9. Finally, stir in the roasted rhubarb pieces.
  10. Spoon the cake mixture into your prepared loaf tin.
  11. Make the crumble topping by rubbing the butter and flour together by hand or in a food processor until the mixture resembles fine breadcrumbs.  Then stir in the sugar.  Sprinkle the crumble topping over the cake mixture.
  12. Put the tin in the oven and bake for 45 minutes.

Rhubarb Crumble Cake

Keywords: rhubarb, cake, loaf cake, rhubarb cake