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 ↓
Quick Waffles
Ingredients
Directions
Make the batter
In a bowl, mix the egg yolks, melted butter, and milk.
Add enough flour to thicken the batter.
In a separate bowl, dissolve the baking soda and cream of tartar in the sour milk, then add to the batter.
Bake
Fold in the beaten egg whites gently.
Bake immediately in a preheated waffle iron.
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).
-
Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
-
Egg + flourtop 15% of all pairsSmell alikelowCooked together106,462 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
- Egg whites
- Beaten whites folded in trap air, giving the waffles a light, airy lift.
- Baking soda
- Reacts with the acid in the sour milk to release gas, helping the waffles rise.
- Cream of tartar
- Acts as an acid that works with the baking soda to produce lift and a tender crumb.
- Sour milk
- Its acidity activates the baking soda and adds a slight tang.
- Egg yolks
- Add richness and help bind the batter.
- Flour
- Provides structure once mixed into the batter, thickening it so the waffles hold their shape.
The step that matters
Fold in the beaten egg whites gently. Beaten whites hold trapped air that provides much of the lift. Stirring vigorously or overmixing deflates the foam and makes the waffles dense, so the whites should be folded in just until combined.
“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.
Rice Gruel28 recipes
Peptoned Milk Gruel9 recipes