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 ↓
Rye-cakes
Ingredients
Directions
The book says “a quick oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.
Prepare
Preheat the oven to 400°F (200°C).
In a bowl, mix the rye meal, salt, and baking soda.
In another bowl, beat the egg yolks until pale and creamy.
In a separate bowl, beat the egg whites until stiff peaks form.
Make the batter
Combine the beaten yolks with the rye mixture, creating a well in the center.
Add the sour milk and mix vigorously until effervescence occurs.
Bake
Grease twelve small cake tins and fill them two-thirds full with the batter.
Bake for 20 minutes without opening the oven, then check for doneness.
Bake for a total of 45 minutes to 1 hour, ensuring they are thoroughly baked.
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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Rye + milktop 12% of all pairsSmell alikemoderateCooked together918 recipes
Shared aroma: ethyl 2-methylbutyrate (fruity, apple).
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Egg + buttertop 17% of all pairsSmell alikemoderateCooked together118,967 recipes
Shared aroma: decanal (soap, orange peel).
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Milk + eggtop 18% of all pairsSmell alikemoderateCooked together88,785 recipes
Shared aroma: 2-nonenal (fatty, green).
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Rye + buttertop 23% of all pairsSmell alikemoderateCooked together348 recipes
Shared aroma: ethyl octanoate (fruity, wine).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Rye meal
- Forms the bulk of the cakes and gives a dense, moist, slightly earthy crumb.
- Baking soda
- Reacts with the acid in the sour milk to release gas that makes the cakes rise.
- Sour milk
- Its acidity activates the baking soda and adds a mild tang and tenderness.
- Eggs
- Yolks enrich and bind the batter, while beaten whites add lightness and structure.
The step that matters
Add the sour milk and mix vigorously until effervescence occurs.. The bubbling comes from the acid in the sour milk reacting with the baking soda and releasing carbon dioxide. Mixing promptly keeps that gas in the batter so the cakes rise well in the oven.
“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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