Name: Christmas Pudding
Ingredients: 1 cup suet, chopped fine; 1 cup New Orleans molasses; ½ cup milk; ½ teaspoon salt; 1 teaspoon cinnamon; 3 cups flour; 1 cup raisins

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 ↓

Christmas Pudding

Ingredients

Directions

Dissolve the baking soda in 2 tablespoons of water and add it to the molasses.
Combine the molasses mixture with the suet, then add the milk, salt, cinnamon, and flour.
Beat the mixture for two minutes, then fold in the floured raisins.
Pour the batter into a well-buttered mold, cover it, and steam or boil for three hours.

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).
Cinnamon + raisintop 1% of all pairs

Smell alikemoderate

Cooked together5,390 recipes

Shared aroma: 1-octen-3-ol (mushroom, earthy).
Cinnamon + flourtop 9% of all pairs

Smell alikemoderate

Cooked together17,341 recipes

Shared aroma: isobutyraldehyde (malty, green).
Milk + cinnamontop 10% of all pairs

Smell alikemoderate

Cooked together12,655 recipes

Shared aroma: cuminaldehyde (Spicy, cumin).
Molasses + cinnamontop 11% of all pairs

Smell alikelow

Cooked together4,928 recipes

Shared aroma: ethanol (alcoholic, ethereal).