Rhubarb crumble cake

Rhubarb crumble cake

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(19 ratings)

Prep: 25 mins Cook: 1 hr, 15 mins


Cuts into 8 slices
Pretty pink fruit ripples through this light sponge cake with crunchy crumble topping - a spin on classic comfort baking

Nutrition and extra info

  • Freezable


  • kcal304
  • fat15g
  • saturates8.7g
  • carbs36.8g
  • sugars17.6g
  • fibre1.5g
  • protein4.8g
  • salt0.5g
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  • 250g pack of butter, softened



    Butter is made when lactic-acid producing bacteria are added to cream and churned to make an…

  • 250g golden caster sugar, plus 1 tbsp
  • 2 tsp vanilla extract
  • 5 large egg
  • 300g plain flour, plus 7 tbsp
  • 2 tsp baking powder
    Baking powder

    Baking powder

    bay-king pow-dah

    Baking powder is a raising agent that is commonly used in cake-making. It is made from an alkali…

  • 1 tsp ground cinnamon
  • 300g rhubarb, washed, trimmed and finely sliced



    Botanically, rhubarb is a vegetable (it's related to sorrel and dock) but its thick, fleshy…


  1. Heat oven to 160C/140C fan/gas 3 and grease and line the base and sides of a deep 20cm round cake tin with a little of the butter and baking parchment. Put the butter, 250g sugar and vanilla into a big mixing bowl. Beat until light and fluffy with an electric whisk.

  2. Beat in the eggs, one by one, then fold in the 300g flour and baking powder. Spoon out 85g of the batter, and stir the extra 7 tbsp flour and cinnamon into this with a cutlery knife so it becomes crumbly.

  3. Fold the rhubarb into the rest of the cake batter and scrape into the prepared tin. Scatter over the crumble mix followed by 1 tbsp sugar. Bake for 1 hr 15 mins, until a skewer poked in comes out clean – you’ll need to lay a sheet of foil on top after an hour if the cake is browning too much. Cool for 15 mins in the tin, then finish on a wire rack.

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Comments (20)

vwestern's picture

Lovely recipe, I chopped the rhubarb very finely, reduced the sugar by 50g as I don't like it too sweet and divided the mixture into two sandwich tins to reduce the cooking time, baked for about 1hr at 140 Celsius and it was fine. Went for jam filling for ease, but may make a cream cheese icing next time. Lots of compliments on this one, so will be making again!

AnnieSandy's picture

Really lovely recipe, great way of getting children to eat rhubarb. I agree that the cooking time does need to be extended by another 20mins or so.

Moofiesmom's picture

This is a great recipe! I baked mine in a fan oven at 150 for an hour and a half. I also put tin foil over the top half way through. However, despite the large amount of rhubarb in it - it wasn't very rhubarby! Next time I'll use dessert apples. I've often wondered how to do the crumble topping such as this and this was amazing!! I love it when I find a true recipe that I can adapt.

aformstone's picture

I loved this recipe! I stuck to the recipe exactly, and it came out perfectly. I baked it for 1hr20m and it was perfectly done - golden brown on the outside, moist but cooked through on the inside. Tasted great! I cooked it in a loaf tin, as I didn't have a cake tin big enough.

Yabayee's picture

Lovely cake - I thought the flavour was great, especially as I don't actually really like rhubarb, just wanted to use up some that came in my veggie box! Agree with some of the other commenters that the cooking time was about 20-30 minutes longer than stated.

belindacaroline's picture

I was somewhat disappointed with this cake. The topping is lovely, and a great idea that would work well on other fruit cakes, particularly apple cake. I followed advice from other commentors, and cooked for 1 3/4 hours at150 degrees in a fan oven, this gave a good consistency, even browning, and it was certainly the length of time it needed. The taste was not so great though, and rather bland, despite having added a tablespoon of chopped fresh ginger. The rhubarb had sunk to the bottom, even though I had cut very thin slices, mixed well and baked immediately. I suppose you could try and counteract this by saving some of the rhubarb and pressing it into the top just before adding the crumble. I also think it needs much more flavour, and could take a large quantity of rhubarb.

squishypiranha's picture

Absolutely fantastic and beautiful cake. Turned out perfect! The same recipe can be used for any fruit. I was unsure about the crumble at first as it was very doughy, but it turned out well in the oven and didn't get too brown like with other recipes I've tried.
In regards to the temperature, it was perfect for me but my oven is very hot. I also have a thermometer in there and if it helps anyone, 140 fan read 170 on the thermometer. So if your oven tends to take longer than shorter with recipes, I would recommend 170 or 150 fan.

abroekman's picture

Absolutely loved this cake. Baked it at 150C instead of 140 and cooking time was pretty much spot on, cake did not go too dark. Moist cake with a slight tang from the rhubarb, crumble topping adds an extra dimension. Will make again...and again...and again...freezes well, too. Forgot....had only about 1,5 tsp of vanilla extract left...used that and added another 1,5 tsp of Liquor 43....yum....

rosalind123's picture

Made this cake for book group friends last night and it was a big hit!

cdacn1's picture

Forgot the rating! One star knocked off for cooking time.

cdacn1's picture

Not long out of the oven but we couldn't wait to try it and were not disappointed. Like others it needed an extra 30min cooking time and I also reduced the sugar by 50g as we like the tartness of rhubarb. Very yummy and easy to do.

shivers's picture

Delicious cake. I added some strawberries from the garden as well. The family demolished this cake in no time.

jn2000's picture

Smells wonderful and pretty straightforward to make. Def took longer than 1.15 to bake in my fan assisted oven at 140degrees. Nearer 1hr45. Worth it though

kellyboo1's picture

Gorgeous and moist cake! My crumble was quite lumpy but this added a lovely texture to the top of the cake. 4 guests and no cake left lol! Great with custard. Will certainly make this again soon!

jean16's picture

My husband loved it - severed it cream and was a winner!

rookie76g's picture

Took longer to cook than it said (140c in fan oven) about 1hr45 in the end but TOTALLY WORTH THE WAIT!! Absolutely delicious!

stitchin's picture

This came out a little heavier than I expected, and even with the addition of orange zest was a little bland. The crumble topping saved it.

marycov's picture

Delicious just like my mum used to make

cocoabee's picture

I have not yet made this wonderful sounding cake but not being a lover of rhubarb I'd most likely substitute cherries, cranberries, or posibbly mango, fresh or dried, or dried appricots, dates and rasins, dried fruit soaked in a good sweet red wine, burbon, or an orange liqueur. The rest of the recipe I would follow although some chopped nuts sound good too! I love nuts in my backed goods. ;)

subtitle's picture

This is a wonderful way to use up your rhubarb. It works really well with fresh stoned, chopped plums too.

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