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
24 medium puffsIngredients
Contains: egg, 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 (200°C) and line two baking sheets with parchment paper.
Whisk the flour, salt, black pepper, dried thyme, chili powder and cayenne pepper together in a bowl.
Combine the 1 cup milk and the butter in a saucepan over medium heat, stirring until the butter melts and the mixture comes to a full boil.
Remove the pan from the heat and add the flour mixture all at once. Stir vigorously until a smooth ball forms, then return to low heat for 1 minute.
Transfer the dough to a bowl and let it cool for 5 minutes. Beat in the eggs one at a time until the dough is smooth and glossy.
Stir in the 1/2 cup grated Parmesan or Romano, the 3/4 cup grated Gruyere, and the diced pepperoni if using.
Drop heaping tablespoons of dough onto the prepared sheets, spacing them apart. Whisk the 2 tablespoons milk and brush the tops, then sprinkle with the 2 tablespoons grated Parmesan.
Bake for 20 to 25 minutes until deep golden, puffed and firm, making sure the centers are set. Serve warm.
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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Pepper + thymetop 3% of all pairsAroma overlapstrongMentioned together11,585 recipes
Shared aroma: beta-phellandrene (minty, terpene).
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Milk + buttertop 3% of all pairsAroma overlapstrongMentioned together81,222 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Butter + gruyere cheesetop 3% of all pairsAroma overlapstrongMentioned together323 recipes
Shared aroma: gamma-decalactone (peach, creamy).
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Butter + romano cheesetop 5% of all pairsAroma overlapstrongMentioned together130 recipes
Shared aroma: gamma-decalactone (peach, creamy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
Flavor stand-ins for the thyme
How well each one fits the dish's main ingredients (flour, pepper, milk, butter, egg, romano cheese, gruyere cheese):
- Nutmegbetter flavor fit
- Parsleyabout as good a flavor fit
- Thymethe original
- Garlicabout as good a flavor fit
Fit is the average pairing score against flour, pepper, milk, butter, egg, romano cheese, gruyere 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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