Why it works: Onion and beef are a kitchen classic. They rank in the top 3% of all ingredient pairs, and 17,091 recipes mention both. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓
The recipe
6 servingsIngredients
Contains: soy, fish (auto-detected from the ingredients and method; we can miss things, so check labels)
Directions
Method written by CompKitchen from the ingredient list. Not the original author's method, not kitchen-tested.
In a bowl, mix the paprika, chili powder, ground cumin, 1 tablespoon dark brown sugar, 1 tablespoon kosher salt, cayenne, 1 teaspoon garlic powder and 1 teaspoon black pepper to make a rub.
Pat the brisket dry and rub the seasoning all over it, pressing it in. Cover and refrigerate for at least 1 hour.
In a bowl, whisk the ketchup, 1/2 cup dark brown sugar, 1/2 cup water, chopped onion, cider vinegar, Worcestershire sauce, chopped chipotles, 1 teaspoon garlic powder and 3/4 teaspoon black pepper until smooth.
Place the brisket fat side up in a slow cooker. Pour the sauce over it, cover, and cook on low for about 10 to 10.5 hours (about 630 minutes).
Check that the thickest part reaches at least 145°F (63°C). The brisket is done when it is fork-tender, usually around 195°F to 203°F (90°C to 95°C).
Transfer the brisket to a cutting board and rest it for 15 minutes. Skim the fat from the sauce and season it with salt and black pepper to taste.
Slice the brisket against the grain and serve with the sauce spooned over it.
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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Onion + beeftop 3% of all pairsAroma overlapmoderateMentioned together17,091 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Ketchup + saucetop 1% of all pairsAroma overlapstrongMentioned together1,099 recipes
Shared aroma: ethanol (alcoholic, ethereal).
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Onion + garlictop 1% of all pairsAroma overlapstrongMentioned together29,030 recipes
Shared aroma: furaneol (caramel, strawberry).
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Pepper + beeftop 4% of all pairsAroma overlapstrongMentioned together18,971 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Cider + vinegartop 4% of all pairsAroma overlapstrongMentioned together402 recipes
Shared aroma: 4-ethyl-2-methoxyphenol (smoky, clove).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
Flavor stand-ins for the onion
How well each one fits the dish's main ingredients (ketchup, sugar, cider, vinegar, sauce, garlic, pepper):
- Capsicumbetter flavor fit
- Mustardbetter flavor fit
- Tomatobetter flavor fit
- Onionthe original
Fit is the average pairing score against ketchup, sugar, cider, vinegar, sauce, garlic, pepper. 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).
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