Why it works: Butter and onion are a kitchen classic. They rank in the top 7% of all ingredient pairs, and 42,827 recipes mention both. Both carry guaiacol, which smells smoky, sweet. The science ↓
The recipe
1 2-quart dishIngredients
Contains: milk (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.
Preheat the oven to 350°F (177°C). Lightly grease a 2-quart baking dish with a little of the butter.
Bring a pot of water to a boil, add the basmati rice, reduce to a simmer, cover, and cook about 18 minutes until just tender. Drain well.
Melt the remaining butter in a large skillet over medium-low heat. Add the chopped sweet onions, cover, and cook about 15 minutes, stirring occasionally, until soft.
Uncover the onions, raise the heat to medium, and cook about 5 minutes more, stirring, until golden. Remove from heat and stir in the salt and half-and-half cream.
Stir the drained rice and 1 cup of the Swiss cheese into the onion mixture. Spread the mixture evenly in the prepared baking dish.
Sprinkle the remaining 1 cup Swiss cheese over the top. Bake about 30 minutes, until bubbling and the cheese is golden.
Let the casserole rest for 5 minutes before serving.
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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Butter + oniontop 7% of all pairsAroma overlapmoderateMentioned together42,827 recipes
Shared aroma: guaiacol (smoky, sweet).
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Butter + swiss cheesetop 3% of all pairsAroma overlapstrongMentioned together412 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Butter + creamtop 3% of all pairsAroma overlapstrongMentioned together41,494 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
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Cream + swiss cheesetop 7% of all pairsAroma overlapmoderateMentioned together174 recipes
Shared aroma: delta-decalactone (sweet, creamy).
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Onion + swiss cheesetop 8% of all pairsAroma overlapmoderateMentioned together436 recipes
Shared aroma: ethyl butyrate (apple, fruity).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
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