Why it works: Rhubarb and lemon match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 546 recipes. Both carry acetic acid, which smells sour, vinegar. The science ↓
Mock Gooseberry Fool
Ingredients
Directions
Prepare the rhubarb
Cut and scrape the rhubarb to fill a glass bowl.
Stew the rhubarb in enough water to cover it until tender.
Rub the cooked rhubarb through a colander to make a smooth pulp.
Sweeten the rhubarb pulp and flavor it with lemon peel.
Make the cream layer
Stir in 1 quart of sweet cream until smooth.
If using custard, prepare it with the yolks of 6 eggs instead of cream.
Top the mixture with whipped syllabub.
Make the meringue topping
For a meringue topping, beat the egg whites with 6 tablespoons of sugar until stiff.
Brown the meringue slightly with a hot salamander or clean shovel.
Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.
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Rhubarb + lemontop 7% of all pairsSmell alikestrongCooked together546 recipes
Shared aroma: acetic acid (sour, vinegar).
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Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Rhubarb + creamtop 17% of all pairsSmell alikemoderateCooked together297 recipes
Shared aroma: acetic acid (sour, vinegar).
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Sugar + lemontop 18% of all pairsSmell alikelowCooked together53,532 recipes
Shared aroma: 2-nonenal (fatty, green).
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Rhubarb + sugartop 18% of all pairsSmell alikemoderateCooked together1,852 recipes
Shared aroma: 1-penten-3-one (fish, pungent).
Sugar and lemon barely smell alike, yet cooks put them together in 53,532 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Rhubarb
- Provides the tart fruit base and bulk of the fool once stewed and pulped.
- Sweet cream
- Adds richness and a smooth, creamy texture to the pulp.
- Egg whites
- Whipped to stiffness, they form a light meringue that holds its shape as a topping.
- Sugar
- Sweetens the tart rhubarb pulp and helps stabilise the whipped egg whites.
- Egg yolks
- Thicken and enrich the custard when it is used in place of cream.
The step that matters
Beating the egg whites until stiff. Egg whites need to be beaten until they hold firm peaks, because under-whipped whites stay runny and collapse into the topping. Gradual sugar addition helps the foam stay stable.
Swap the lemon
How well each one fits the dish's main ingredients (rhubarb, sugar, cream, egg):
- Vanillafits better
- Strawberryfits better
- Raisinfits about as well
- Lemonthe original
Fit is the average pairing score against rhubarb, sugar, cream, egg. Candidates are from the same food group and used in at least 100 recipes.
“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.
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