Why it works: Beans and onion match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 5,242 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
Baked Beans
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.
Prepare
Boil the white beans in water for 4 hours, then drain.
Place the beans in a bean jar.
Season and bake
Add salt, molasses, ground chili, and chopped onion.
Lay slices of salt pork on top of the beans.
Add enough water to cover the beans.
Bake in a 300°F (150°C) oven for 5 hours.
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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Beans + oniontop 7% of all pairsSmell alikestrongCooked together5,242 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Onion + porktop 10% of all pairsSmell alikemoderateCooked together18,214 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Beans + porktop 11% of all pairsSmell alikemoderateCooked together2,000 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
-
Beans + molassestop 26% of all pairsSmell alikelowCooked together491 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Molasses + porktop 34% of all pairsSmell alikelowCooked together825 recipes
Shared aroma: furaneol (caramel, strawberry).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- White beans
- Form the bulk of the dish and become tender during the long cooking.
- Cooking molasses
- Adds sweetness and a deep color as it caramelizes slowly in the oven.
- Salt pork
- Adds fat and savory flavor that seeps down into the beans as they bake.
- Onion
- Adds aromatic sweetness and savory depth to the cooking liquid.
The step that matters
Add enough water to cover the beans. Beans that poke above the liquid dry out and toughen during the long bake. Keeping them submerged lets them soften evenly and absorb the seasoning.
Swap the onion
How well each one fits the dish's main ingredients (beans, molasses, pork):
- Potatofits better
- Mustardfits better
- Sweet potatofits better
- Onionthe original
Fit is the average pairing score against beans, molasses, pork. 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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