Why it works: Flour and raisin match in chemistry and in kitchens. They rank in the top 1% of all ingredient pairs, and cooks put them together in 9,075 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Hash Cake
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point. The book gives no cooking times either; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.
Make the cake
Preheat the oven to 350°F (175°C).
Cream the butter and sugar together until light and fluffy.
Add the egg whites and mix well.
Stir in the milk, baking soda, cream of tartar, and flour until combined.
Pour the batter into a greased cake pan and bake for 25-30 minutes.
Make the frosting and serve
For the frosting, combine the chopped raisins, hickory nuts, sugar, and water in a saucepan.
Boil the mixture until it reaches a stringy consistency.
Spread the frosting over the cooled cake.
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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Flour + raisintop 1% of all pairsSmell alikestrongCooked together9,075 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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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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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 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
- Butter
- Creams with sugar to trap air, giving the cake a light, tender crumb.
- Egg whites
- Add structure and lift as they set in the oven.
- Baking soda
- Reacts with the acid in the batter to produce gas that helps the cake rise.
- Cream of tartar
- Acidifies the batter, supporting the baking soda reaction and stabilizing the egg whites.
- Flour
- Provides the structure that holds the cake together as it bakes.
- Sugar
- Sweetens the cake and helps tenderize it when creamed with butter.
The step that matters
Boiling the frosting to a stringy consistency. Sugar syrup must be cooked to the right point: too little and the frosting stays runny, too much and it turns hard and grainy as it cools. Watching the texture closely prevents both.
Swap the raisin
How well each one fits the dish's main ingredients (butter, sugar, egg, milk, cream, flour, meat):
- Vanillafits better
- Raisinthe original
- Coconutfits less well
- Figfits less well
Fit is the average pairing score against butter, sugar, egg, milk, cream, flour, meat. 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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