Why it works: Cinnamon and flour are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 17,341 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓
Doughnuts
Ingredients
Directions
Make the dough
In a bowl, mix sugar and shortening until creamy.
Add the whole egg and egg yolk, then mix well.
Stir in milk, cream of tartar, baking soda, salt, and cinnamon.
Gradually add flour until the dough is soft and workable.
Shape and fry
Roll out the dough and cut into doughnut shapes.
Fry in hot oil until golden brown, turning often.
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.
Photo for illustrative purposes only · Contact us to use it
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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Cinnamon + flourtop 9% of all pairsSmell alikemoderateCooked together17,341 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Sugar + creamtop 9% of all pairsSmell alikemoderateCooked together43,450 recipes
Shared aroma: 2,3-butanedione (butter, sweet).
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Milk + cinnamontop 10% of all pairsSmell alikemoderateCooked together12,655 recipes
Shared aroma: cuminaldehyde (Spicy, cumin).
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Sugar + cinnamontop 10% of all pairsSmell alikelowCooked together30,779 recipes
Shared aroma: guaiacol (smoky, sweet).
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
Sugar and cinnamon barely smell alike, yet cooks put them together in 30,779 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
- Eggs
- Bind the dough and add richness and structure as it sets in the fryer.
- Baking soda
- Reacts with the acidic cream of tartar to release gas, helping the doughnuts rise.
- Cream of tartar
- Provides acidity that activates the baking soda for lift and a tender crumb.
- Shortening
- Adds fat that tenderises the dough and carries flavour.
- Milk
- Adds moisture that hydrates the flour and helps form a soft dough.
The step that matters
Fry in hot oil until golden brown, turning often. If the oil is too cool, doughnuts absorb excess oil and turn greasy; if too hot, the outside browns before the centre cooks. Turning often gives even colour and cooking.
Swap the cinnamon
How well each one fits the dish's main ingredients (sugar, egg, milk, cream, flour):
- Nutmegfits about as well
- Cinnamonthe original
- Jalapenofits less well
- Turmericfits less well
Fit is the average pairing score against sugar, egg, milk, cream, flour. 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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