Why it works: Butter and flour are a kitchen classic. They rank in the top 12% of all ingredient pairs, and cooks put them together in 124,287 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Baked Apple Pudding, or Custard
Ingredients
Directions
The book says “a moderate oven”. The 350°F (175°C) in the steps is the modern equivalent, not the book's own figure.
Make the filling
Stew the apples with sugar and water until smooth, stirring often to prevent sticking.
While hot, mix in the butter, lemon rind, and juice.
Gradually stir in the beaten egg yolks and flour (or crushed biscuits/macaroons).
Bake and serve
Pour the mixture into a baking dish and bake for 30-40 minutes at 350°F (175°C) until firm in the middle.
For extra flavor, pour a little clarified butter on top and sprinkle with sugar before serving.
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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Apple + lemontop 14% of all pairsSmell alikemoderateCooked together7,551 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Apple + buttertop 14% of all pairsSmell alikemoderateCooked together8,706 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour barely smell alike, yet cooks put them together in 124,287 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
- Boiling apples
- Cook down into a smooth, sweet base that forms the body of the pudding.
- Eggs
- Egg yolks thicken and set the mixture as it bakes, giving it a firm, custard-like texture.
- Butter
- Adds richness and fat, giving the pudding a softer, more tender mouthfeel.
- Flour or crushed biscuits
- Provides starch or crumb that helps the pudding hold its shape as it sets.
- Sugar
- Sweetens the apples and helps the pudding brown lightly on top.
The step that matters
Bake until firm in the middle. Egg yolks set as they heat past about 65 to 70°C. Pulling the pudding too early leaves it runny in the centre, while overbaking can make it dry and grainy.
Swap the apple
How well each one fits the dish's main ingredients (sugar, butter, lemon, egg, flour):
- Raisinfits better
- Vanillafits better
- Figfits better
- Applethe original
Fit is the average pairing score against sugar, butter, lemon, egg, flour. 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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