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 ↓
Almond Bars
Ingredients
Directions
The book says “a slow oven”. The 300°F (150°C) in the steps is the modern equivalent, not the book's own figure.
Mix the dough
Preheat the oven to 300°F (150°C).
In a large bowl, mix the sugar, flour, eggs, ammonia, and chopped almonds until a dough forms.
Shape and glaze
Roll the dough out on a clean surface to about 1 inch thick and 2 inches wide.
Cut the dough into 4‑inch thick slices with a sharp knife.
Place the slices on baking pans with the cut side facing up.
Wash the tops with beaten egg.
Bake
Bake in the preheated oven until golden.
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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Sugar + flourtop 15% of all pairsSmell alikemoderateCooked together92,116 recipes
Shared aroma: phenylacetaldehyde (hawthorne, honey).
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Flour + eggtop 15% of all pairsSmell alikelowCooked together106,462 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + almondtop 18% of all pairsSmell alikemoderateCooked together15,679 recipes
Shared aroma: 1-penten-3-one (fish, pungent).
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Sugar + eggtop 21% of all pairsSmell alikemoderateCooked together122,807 recipes
Shared aroma: 2-nonenal (fatty, green).
Flour and egg barely smell alike, yet cooks put them together in 106,462 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
- Sugar
- Adds sweetness and helps the bars brown as they bake.
- Flour
- Forms the main structure of the dough.
- Eggs
- Bind the dough together and give the beaten egg glaze a glossy, browned top.
- Ammonia
- Acts as a leavening agent, releasing gas as it heats to lighten the bars.
- Chopped almonds
- Add texture and nutty flavour throughout the dough.
The step that matters
Bake in the preheated oven until golden. Ammonia-based leavening releases gas as it heats, so the dough should go into a fully preheated oven right away. Baking until golden sets the structure and develops browning, which indicates the bars are done.
“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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