Why it works: Butter and milk are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Cookies, Gingerbread and Snaps
Ingredients
Directions
The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Make the dough
Preheat the oven to 400°F (200°C).
In a bowl, cream the butter and sugar together.
Add the salt, ginger, and beaten egg to the mixture.
Dissolve the baking soda in the water and stir it into the sour milk.
Combine the sour milk mixture with the other ingredients in the bowl.
Gradually beat in the flour until well mixed.
Shape and bake
Take half of the dough and roll it out to about ½ inch thick.
Cut the rolled dough into squares.
Bake the squares for about 8 minutes.
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.
-
Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + milktop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Flour + sugartop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
-
Ginger + flourtop 15% of all pairsSmell alikemoderateCooked together8,564 recipes
Shared aroma: isobutyraldehyde (malty, green).
Flour and butter 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 add tenderness and richness to the cookie.
- Sugar
- Sweetens the dough and helps it brown while creaming aerates it.
- Flour
- Provides the structure that holds the cookie shape as it bakes.
- Egg
- Binds the dough and adds structure and moisture.
- Baking soda
- Reacts with the sour milk to produce gas that lifts the dough.
- Sour milk
- Its acidity activates the baking soda and adds tang and moisture.
The step that matters
Dissolving and mixing the baking soda with the sour milk. Baking soda needs an acid to react and release gas for lift. Combining it fully with the sour milk before adding it to the dough spreads the reaction evenly, so the cookies rise uniformly rather than in patches.
Swap the ginger
How well each one fits the dish's main ingredients (flour, butter, sugar, egg, milk):
- Cinnamonfits better
- Nutmegfits better
- Jalapenofits better
- Gingerthe original
Fit is the average pairing score against flour, butter, sugar, egg, milk. 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.
You might also like
Ginger Cookies213 recipes
Ginger Cake93 recipes
Soft Ginger Bread85 recipes
Soft Ginger Cake56 recipesThe free Flavor Lab newsletter: one surprising pairing a week and the molecular reason it works, in 60 seconds. No spam, unsubscribe anytime.
Prefer an account? Create a free account to save pairings and unlock the full chemistry.