Why it works: Beans and tomato match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and 2,711 recipes mention both. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
The recipe
Ingredients
Directions
Soak the beans
Wash and sort beans. Cover with water and bring to a boil.
Boil for 2 minutes and remove from heat.
Let soak for 2 hours.
Bring to a boil again and then simmer about an hour or until cooked, but not soft or mushy.
Drain beans.
Slow cook
Put beans in the crockpot.
Mix the remaining ingredients together and stir into the beans.
Turn on low and cook for 10–12 hours.
Or add ½ cup tomato juice, cover tightly, and cook in a 200 oven overnight.
This recipe comes from the Recipes Wiki on Fandom and is licensed CC BY-SA 4.0. Our formatting and summaries are shared under the same licence.
Steps grouped into stages for easier reading; the method is the source's own.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much aroma chemistry they share, and how many recipes mention both.
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Beans + tomatotop 2% of all pairsAroma overlapstrongMentioned together2,711 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Beans + mustardtop 4% of all pairsAroma overlapstrongMentioned together852 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + tomatotop 4% of all pairsAroma overlapstrongMentioned together20,622 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Onion + mustardtop 4% of all pairsAroma overlapstrongMentioned together9,243 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Beans + oniontop 5% of all pairsAroma overlapstrongMentioned together5,241 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
- Beans
- Provide the main body and texture of the dish as they cook tender in the sauce.
- Onion
- Adds savory aroma and sweetness as it softens into the sauce.
- Catsup
- Adds tomato acidity and sweetness that balances the rich sauce.
- Brown sugar
- Adds sweetness and helps deepen the color of the sauce during long cooking.
- Molasses
- Adds dark sweetness and a deep, slightly bitter flavor to the sauce.
- Dry mustard
- Adds a sharp, pungent aroma that cuts through the sweetness.
The step that matters
Simmer the beans until just cooked. The beans keep cooking for many hours in the sauce, so they should be tender but firm at this stage. Starting too soft leaves them mushy after the slow cook.
Flavor stand-ins for the onion
How well each one fits the dish's main ingredients (beans, sugar, mustard, molasses, ginger, tomato):
- Capsicumbetter flavor fit
- Sweet potatobetter flavor fit
- Broccolibetter flavor fit
- Onionthe original
Fit is the average pairing score against beans, sugar, mustard, molasses, ginger, tomato. Candidates are from the same food group and used in at least 100 recipes. This compares flavor only: it does not check the job the ingredient does in the dish (bulk, moisture, acidity, structure).
“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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