Name: Imperial Cake
Ingredients: 1 lb butter; 1 lb flour (sifted); 1 lb raisins; ½ lb almonds (blanched and sliced thin); ¼ lb citron; 8 eggs (beaten separately); ⅓ cup wine; a little mace

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 ↓

Imperial 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.

Preheat the oven to 350°F (175°C).
Cream the butter until light and fluffy.
Gradually add the sugar and continue to beat until well combined.
In a separate bowl, mix the flour, raisins, almonds, citron, and mace.
Add the dry ingredients to the butter mixture alternately with the beaten eggs and wine.
Pour the batter into a greased cake pan.
Bake for about 1 hour or until a toothpick inserted in the center comes out clean.

Recipe from a historical cookbook (Internet Archive).

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.

Flour + raisintop 1% of all pairs

Smell alikestrong

Cooked together9,075 recipes

Shared aroma: isobutyraldehyde (malty, green).
Raisin + almondtop 2% of all pairs

Smell alikemoderate

Cooked together1,781 recipes

Shared aroma: 2-nonanone (fruity, floral).
Flour + almondtop 5% of all pairs

Smell alikemoderate

Cooked together8,673 recipes

Shared aroma: isobutyraldehyde (malty, green).
Butter + almondtop 11% of all pairs

Smell alikemoderate

Cooked together9,245 recipes

Shared aroma: 2,3-pentanedione (butter, sweet).
Butter + flourtop 12% of all pairs

Smell alikelow

Cooked 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

Swap the mace

How well each one fits the dish's main ingredients (butter, flour, raisin, almond, egg, wine):

Cinnamonfits better
Nutmegfits better
Capersfits better
Macethe original

Fit is the average pairing score against butter, flour, raisin, almond, egg, wine. Candidates are from the same food group and used in at least 100 recipes.