Why it works: Romano cheese and gruyere cheese share more aroma than cooks usually use. They rank in the top 1% of all ingredient pairs, and 5 recipes mention both. Both carry ethyl 2-methylbutyrate, which smells fruity, apple. The science ↓
The recipe
8 servingsIngredients
Contains: milk, wheat (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.
Melt the butter in a large heavy pot over medium heat. Add the sliced onions and cook, stirring often, for about 10 minutes until softened and golden.
Raise the heat to medium-high and cook 3 more minutes, stirring, until the onions are deeper brown at the edges without burning.
Pour in the beef broth and beef consomme and bring to a boil. Reduce the heat and simmer uncovered for 7 minutes. Season with salt and pepper to taste.
Preheat the broiler on high, about 500°F (260°C). Ladle the hot soup into 8 broiler-safe bowls or crocks set on a baking sheet.
Top each bowl with a slice of toasted French bread. Sprinkle with the grated Romano and shredded Gruyere cheese.
Broil 2 to 3 minutes, watching closely, until the cheese is melted and bubbling. Serve hot.
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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Romano cheese + gruyere cheesetop 1% of all pairsAroma overlapstrongMentioned together5 recipes
Shared aroma: ethyl 2-methylbutyrate (fruity, apple).
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Butter + breadtop 3% of all pairsAroma overlapstrongMentioned together27,145 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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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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Butter + gruyere cheesetop 3% of all pairsAroma overlapstrongMentioned together323 recipes
Shared aroma: gamma-decalactone (peach, creamy).
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Beef + peppertop 4% of all pairsAroma overlapstrongMentioned together18,971 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
The Sunday pairing: one pairing, the chemistry behind it, and how to cook it. No spam, unsubscribe anytime.
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