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 gives no oven temperature. The 300°F (150°C) in the steps was added when the recipe was transcribed, as a starting point. The book gives no cooking times either; the times in the steps were added in transcription, so check for doneness rather than trusting the clock.
Prepare the beans
Soak the beans overnight in water.
Drain and rinse the beans, then place them in a pot with 4 cups of water.
Add the chopped onion, molasses, brown sugar, salt, and pepper.
Bring to a boil, then reduce heat and simmer for 1 hour.
Bake
Preheat the oven to 300°F (150°C).
Transfer the mixture to a baking dish, add the salt pork on top, and cover.
Bake for 4 to 5 hours, adding water as needed to keep the beans moist.
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).
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Onion + porktop 10% of all pairsSmell alikemoderateCooked together18,214 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Beans + peppertop 11% of all pairsSmell alikemoderateCooked together4,733 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + peppertop 11% of all pairsSmell alikemoderateCooked together68,474 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Beans + porktop 11% of all pairsSmell alikemoderateCooked together2,000 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Navy beans
- Provide the starchy bulk and body that make up the finished dish.
- Molasses
- Adds dark color, deep sweetness, and a rich flavor during the long bake.
- Brown sugar
- Adds sweetness and helps the sauce thicken and darken as it bakes.
- Salt pork
- Releases fat and savory flavor into the beans as it cooks slowly on top.
- Onion
- Contributes savory aroma and flavor to the bean sauce.
The step that matters
Keeping the beans moist during the long bake. Over four to five hours in the oven, liquid evaporates and beans can dry out or scorch. Adding water as needed keeps them tender and keeps the sauce from burning onto the dish.
Swap the onion
How well each one fits the dish's main ingredients (beans, molasses, sugar, pepper, pork):
- Capsicumfits better
- Mustardfits better
- Sweet potatofits better
- Onionthe original
Fit is the average pairing score against beans, molasses, sugar, pepper, 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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