Rhubarb & custard cake

Rhubarb & custard cake

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(153 ratings)

Prep: 20 mins Cook: 1 hr Plus rhubarb cooking and cooling


Serves 16
This recipe tastes even better with homegrown rhubarb

Nutrition and extra info

Nutrition: per serving

  • kcal278
  • fat15g
  • saturates9g
  • carbs34g
  • sugars21g
  • fibre1g
  • protein4g
  • salt0.5g
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  • 1 quantity Barney's roasted rhubarb (see recipe, below method)



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

  • 250g pack butter, softened, plus extra for greasing



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

  • 150g pot ready-made custard (not the chilled kind; I used Ambrosia)
  • 250g self-raising flour
  • ½ 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…

  • 4 large eggs



    The ultimate convenience food, eggs are powerhouses of nutrition, packed with protein and a…

  • 1 tsp vanilla extract
  • 250g golden caster sugar
  • icing sugar, for dusting


  1. Make the roasted rhubarb first, carefully draining off the juices before you let it cool. Butter and line a 23cm loose-bottomed or springform cake tin. Heat oven to 180C/fan 160C/gas 4.

  2. Reserve 3 tbsp of the custard in a bowl. Beat the rest of the custard together with the butter, flour, baking powder, eggs, vanilla and sugar until creamy and smooth. Spoon one-third of the mix into the tin, add some of the rhubarb, then dot with one-third more cake mix and spread it out as well as you can. Top with some more rhubarb, then spoon over the remaining cake mix, leaving it in rough mounds and dips rather than being too neat about it. Scatter the rest of the rhubarb over the batter, then dot the remaining custard over. Bake for 40 mins until risen and golden, then cover with foil and bake for 15-20 mins more. It’s ready when a skewer inserted into the middle comes out clean. Cool in the tin, then dredge with icing sugar when cool.

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Comments, questions and tips

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28th Apr, 2012
Gorgeous! However, like others I used more rhubarb - 700 grams and it was just the right quantity.
27th Apr, 2012
I saw this recipe last year, as my husbands allotment causes me many a headache , coping with gluts . I made several og these and froze. I have just baked my first one of this season , delicious ! Thanks for the great recipe, this has become a firm favourite on our house.
23rd Apr, 2012
Made this yesterday, so simple and so delicious. Will definitely make it again.
23rd Apr, 2012
Superb cake. Nice and tart rhubarb flavour, with the kitsch custard quirk. I feltbad buying a tub of pre-made custard, but given the small quantity required, it made sense. Agree with other reviews - more cooking time needed, so was glad for the diligent tin lining, but would advocate a loose layer of foil over the top to stop too much browning.
23rd Apr, 2012
Served this as a pudding and the whole lot was polished off! Forgot to mix custard in with the cake batter so dolloped the whole pot on top, alternating with cake batter. Took nearer 1.5hr, rather than 1hr to bake.
23rd Apr, 2012
Served this as a pudding and it went down very well. Forgot to mix the custard in the cake batter so just dolloped the whole pot over the cake - still worked! Think it took nearer an hour and a half to bake, than an hour.
22nd Apr, 2012
Amazing cake, so easy to make and what a crowd pleaser - delicious!!! I cooked the rhubarb slightly longer and found that I had no problems with pieces sinking to the bottom. I did need to cook cake for longer - 25 minutes covered with foil. Cake moist and fluffy, and will certainly be making again.
22nd Apr, 2012
I make this again and again! Really moist and moorish! A fab recipe!
19th Apr, 2012
O my life! This is a must bake! Absolutely delicious!
18th Apr, 2012
Amazing cake! I made this a few weeks ago and took it into work where it went down really well. Although I over roasted the rhubarb so most of it sunk to the bottom but no one seemed to care! Can't wait to try this with apples.


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