Why it works: Potato and onion match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and 9,019 recipes mention both. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. 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.
Heat the oven to 400°F (204°C). Halve the baby golden potatoes, toss them with 1 tablespoon of the vegetable oil, salt and pepper, and roast on a sheet pan for 25 minutes until tender and crisp at the edges.
While the potatoes roast, boil a large pot of salted water, add the elbow macaroni and cook until just tender, about 8 minutes. Drain well.
Melt the butter in a saucepan over medium heat. Whisk in the flour and cook for 1 minute. Slowly whisk in the milk and simmer, stirring, until thickened, about 5 minutes.
Lower the heat to low. Stir in the sour cream, half the shredded cheddar, and half the cream cheese until smooth. Season with salt, pepper and cayenne pepper.
Stir in the drained macaroni, half the crumbled bacon, and half the chopped green onions until evenly coated.
Grease a 9x13-inch baking dish with the remaining 1 tablespoon of vegetable oil. Spread half the macaroni mixture in the dish.
Scatter the roasted potatoes over the macaroni, then spread the rest of the macaroni on top. Sprinkle with the remaining cheddar, dot with the remaining cream cheese, and top with the remaining bacon and green onions.
Bake for 20 minutes until bubbling and golden on top. Let 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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Potato + oniontop 2% of all pairsAroma overlapstrongMentioned together9,019 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Cheddar cheese + cream cheesetop 1% of all pairsAroma overlapstrongMentioned together468 recipes
Shared aroma: ethyl 2-methylbutyrate (fruity, apple).
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Butter + milktop 3% of all pairsAroma overlapstrongMentioned together81,222 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Potato + cheddar cheesetop 3% of all pairsAroma overlapstrongMentioned together932 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + cream cheesetop 3% of all pairsAroma overlapstrongMentioned together2,746 recipes
Shared aroma: ethyl octanoate (fruity, wine).
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 (potato, butter, flour, milk, cream, cheddar cheese, cream cheese):
- Chiveabout as good a flavor fit
- Onionthe original
- Asparagusabout as good a flavor fit
- Capsicumabout as good a flavor fit
Fit is the average pairing score against potato, butter, flour, milk, cream, cheddar cheese, cream cheese. 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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