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Rhubarb Crumble Cake

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

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Why it works: Vanilla and rhubarb match in chemistry and in kitchens. They rank in the top 4% of all ingredient pairs, and 276 recipes mention both. Both carry methyl cinnamate, which smells strawberry. The science ↓

The recipe

Cuts into 8 slices
Prep25 min

Ingredients

Contains: egg, milk, wheat (auto-detected from the ingredients and method; we can miss things, so check labels)

Directions

Method written by CompKitchen from the ingredient list. Not the original author's method, not kitchen-tested.

  1. Heat the oven to 180°C (350°F). Grease and line a 23 cm (9 inch) square or round cake tin.

  2. For the crumble, rub the 7 tbsp plain flour, the 1 tbsp caster sugar, the cinnamon and a portion of the cold, cubed butter together with your fingertips until it looks like coarse breadcrumbs. Set aside.

  3. Cream the remaining butter with the 250g caster sugar until pale and fluffy. Beat in the vanilla extract.

  4. Beat the eggs in one at a time, adding a spoonful of flour after each to stop the mixture splitting.

  5. Fold in the remaining 300g plain flour and the baking powder until just combined, then gently fold in the sliced rhubarb.

  6. Spread the batter evenly into the prepared tin and scatter the crumble mixture over the top, pressing it lightly.

  7. Bake for 50 to 60 minutes until golden and a skewer inserted into the centre comes out clean. Cover loosely with foil if the top browns too quickly.

  8. Cool in the tin for 15 minutes, then lift out onto a rack to cool completely before cutting into 8 slices.

By bbcgoodfood. Recipe from Open Recipes.

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much aroma chemistry they share, and how many recipes mention both.

  1. Vanilla + rhubarbtop 4% of all pairs
    Aroma overlapstrong
    Mentioned together276 recipes

    Shared aroma: methyl cinnamate (strawberry).

  2. Vanilla + cinnamontop 2% of all pairs
    Aroma overlapstrong
    Mentioned together5,287 recipes

    Shared aroma: 4-methoxybenzaldehyde (sweet, anise).

  3. Sugar + vanillatop 3% of all pairs
    Aroma overlaplow
    Mentioned together35,031 recipes

    Shared aroma: beta-damascenone (apple, rose).

  4. Cinnamon + rhubarbtop 4% of all pairs
    Aroma overlapstrong
    Mentioned together279 recipes

    Shared aroma: methyl cinnamate (strawberry).

  5. Sugar + cinnamontop 4% of all pairs
    Aroma overlaplow
    Mentioned together30,777 recipes

    Shared aroma: guaiacol (smoky, sweet).

Sugar and vanilla share little aroma chemistry, yet 35,031 recipes mention both: they likely work on texture and structure more than aroma.

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs