Why it works: Flour and nutmeg are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 18,623 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Sour Milk Doughnuts
Ingredients
Directions
Make the dough
In a large bowl, combine sour milk, baking soda, sour cream, baking powder, eggs, and sugar. Mix until well combined.
Gradually add flour until the dough is firm enough to roll out.
Flavor the dough with nutmeg, cinnamon, or vanilla as desired.
Shape and fry
Roll out the dough and cut into doughnut shapes.
Fry in hot oil until golden brown.
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 + nutmegtop 8% of all pairsSmell alikemoderateCooked together18,623 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Cream + sugartop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
-
Cream + nutmegtop 13% of all pairsSmell alikemoderateCooked together7,920 recipes
Shared aroma: acetic acid (sour, vinegar).
-
Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
Milk and flour barely smell alike, yet cooks put them together in 78,219 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
- Sour milk
- Its acidity reacts with baking soda to produce gas that lightens the dough.
- Baking soda
- Reacts with the acidic sour milk and sour cream to release carbon dioxide for rising.
- Sour cream
- Adds fat and acidity, giving a tender crumb and moisture to the dough.
- Baking powder
- Provides additional leavening so the doughnuts rise and stay light.
- Eggs
- Bind the dough and add structure and richness as the flour sets.
- Flour
- Forms the gluten network that gives the dough structure to roll and hold its shape.
The step that matters
Gradually add flour until the dough is firm enough to roll out. Adding too much flour makes the dough dry and tough, while too little leaves it sticky and hard to shape. Gluten development from kneading and handling also toughens the texture, so the dough should be just firm enough to roll.
Swap the nutmeg
How well each one fits the dish's main ingredients (milk, cream, egg, sugar, flour):
- Nutmegthe original
- Cinnamonfits about as well
- Jalapenofits less well
- Turmericfits less well
Fit is the average pairing score against milk, cream, egg, sugar, 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.
You might also like
The 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.
White Cake431 recipes
Pound Cake373 recipes
Orange Bundt Cake349 recipes
Spice Cake344 recipes