Why it works: Milk and butter 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 ↓
Waffles
Ingredients
Directions
Make the batter
Combine milk, flour, eggs, yeast, and salt in a bowl.
Set aside overnight to sponge.
In the morning, add melted butter to the sponge mixture.
Cook
Preheat waffle irons until very hot and grease them well.
Pour batter into the hot waffle irons and cook quickly to prevent scorching.
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.
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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Flour + buttertop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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
- Flour
- Provides the structure that holds the waffle once the batter sets in the iron.
- Eggs
- Add structure and richness, helping the waffle set and hold together.
- Yeast
- Ferments the overnight sponge, giving the batter its rise and a slightly tangy flavor.
- Milk
- Hydrates the flour and yeast, forming the liquid batter and adding tenderness.
- Butter
- Adds fat for flavor and a tender texture, and helps the waffle release and brown.
The step that matters
Preheating and greasing the waffle irons. The iron must be very hot and well greased so the batter sets quickly and releases cleanly. Cooking fast prevents the sugars and starches on the surface from scorching before the interior is cooked through.
“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.
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