Why it works: Flour and almond are a kitchen classic. They rank in the top 5% of all ingredient pairs, and cooks put them together in 8,673 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Blitzkuchen or Lightning Cookies
Ingredients
Directions
Prepare the dough
Melt the butter and remove any solids.
Cream the melted butter with some of the sugar.
Add the eggs and lemon rind, stirring constantly.
Gradually mix in the flour.
Shape and bake
Grease your baking tins.
Spread the dough thinly like a wafer.
Sprinkle with sugar, shaved almonds, and cinnamon.
Bake until golden, then cut into diagonal squares and remove from tins.
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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Flour + almondtop 5% of all pairsSmell alikemoderateCooked together8,673 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Almond + lemontop 10% of all pairsSmell alikestrongCooked together5,655 recipes
Shared aroma: eucalyptol (eucalyptus, herbal).
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Butter + almondtop 11% of all pairsSmell alikemoderateCooked together9,245 recipes
Shared aroma: 2,3-pentanedione (butter, sweet).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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
- Butter
- Adds richness and fat, giving the cookies a tender, crisp texture.
- Sugar
- Adds sweetness and helps the cookies brown as they bake.
- Flour
- Provides the structure that holds the thin dough together once baked.
- Eggs
- Bind the dough and help set the thin wafer as it bakes.
- Almonds
- Add nutty flavour and a crunchy topping to the cookies.
The step that matters
Spread the dough thinly like a wafer. Thin spreading lets the cookies bake quickly and evenly. Thick dough would stay doughy in the middle while the edges over-brown.
Swap the lemon
How well each one fits the dish's main ingredients (butter, sugar, flour, almond, egg):
- Raisinfits better
- Vanillafits better
- Figfits better
- Lemonthe original
Fit is the average pairing score against butter, sugar, flour, almond, egg. 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.
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