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 ↓
Soda Crackers
Ingredients
Directions
The book gives no oven temperature. The 400°F (200°C) in the steps was added when the recipe was transcribed, as a starting point.
Prepare
Preheat oven to 400°F (200°C).
Make the dough
Rub butter into flour mixed with cream of tartar.
Dissolve baking soda in cream.
Beat eggs and mix into flour mixture.
Add milk gradually until dough is right consistency to roll.
Add a little salt to taste.
Shape and bake
Roll dough and cut into desired shapes.
Bake until golden brown.
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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Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Butter + creamtop 8% of all pairsSmell alikemoderateCooked together41,516 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Flour + milktop 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).
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
- Rubbed into the flour, it coats flour particles and makes the crackers tender and short.
- Flour
- Forms the main structure of the dough once mixed with liquid and eggs.
- Cream of tartar
- Acidic powder that reacts with baking soda to help the crackers rise and lighten.
- Baking soda
- Reacts with the acid in cream of tartar to produce gas for rising and aids browning.
- Eggs
- Add richness and binding, helping hold the dough together.
The step that matters
Adding milk gradually. Flour absorbs liquid at different rates, and too much milk makes the dough sticky and hard to roll, while too little makes it crumbly. Adding it slowly lets you stop at the right consistency.
“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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