Why it works: Parsley and pepper match in chemistry and in kitchens. They rank in the top 2% of all ingredient pairs, and cooks put them together in 34,122 recipes. Both carry 4'-methylacetophenone, which smells bitter almond. The science ↓
Parmesan Carbonara
Ingredients
Directions
Cook the pasta
Cook linguine according to package directions.
Drain, but do not rinse.
Return pasta to pan.
Make the sauce and serve
Toss with eggs, butter, and milk.
Add remaining ingredients.
Heat thoroughly, stirring occasionally.
Serve with additional Parmesan cheese if desired.
Nutrition, whole recipe (rough)
What these numbers assume: 7 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Milk | 1 cup (244ml) whole | 149 |
| Parmesan Cheese | 1 oz (28g) | 110 |
| Butter | 1 tbsp (14g) | 102 |
| Egg | 1 large egg (50g) | 78 |
| Bacon | 1 slice cooked (8g) | 43 |
| Black Pepper | 1 tsp ground (2.3g) | 6 |
| Parsley | 1 tbsp chopped fresh (3.8g) | 1 |
One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.
Steps grouped into stages for easier reading; the method is the source's own.
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.
-
Parsley + peppertop 2% of all pairsSmell alikestrongCooked together34,122 recipes
Shared aroma: 4'-methylacetophenone (bitter almond).
-
Butter + milktop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Butter + parmesan cheesetop 9% of all pairsSmell alikemoderateCooked together4,163 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Parmesan cheese + peppertop 14% of all pairsSmell alikemoderateCooked together5,322 recipes
Shared aroma: ethyl 2-methylbutyrate (fruity, apple).
-
Butter + parsleytop 15% of all pairsSmell alikemoderateCooked together28,563 recipes
Shared aroma: trans-2-hexenal (green, leafy).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Eggs
- Beaten eggs set gently with the heat, thickening the sauce and coating the pasta creamily.
- Butter
- Adds fat and richness, helping the sauce coat the strands smoothly.
- Parmesan cheese
- Adds salty, savory flavor and helps thicken the sauce as it melts.
- Bacon
- Contributes smoky, savory flavor and rendered fat to the dish.
- Milk
- Adds moisture and mildness, loosening the egg mixture into a silky sauce.
The step that matters
Heat thoroughly, stirring occasionally. Eggs thicken as they heat but can scramble if overheated or left still. Gentle, frequent stirring keeps the sauce smooth and creamy rather than grainy.
Swap the parsley
How well each one fits the dish's main ingredients (egg, butter, milk, parmesan cheese, pepper):
- Parsleythe original
- Nutmegfits about as well
- Cinnamonfits less well
- Thymefits less well
Fit is the average pairing score against egg, butter, milk, parmesan cheese, pepper. Candidates are from the same food group and used in at least 100 recipes.
“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.
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