Why it works: Parmesan cheese and butter are a kitchen classic. They rank in the top 9% of all ingredient pairs, and cooks put them together in 4,163 recipes. Both carry guaiacol, which smells smoky, sweet. The science ↓
Zucchini Gratin
Ingredients
Directions
Prepare
Butter a 10-inch pie plate or quiche pan.
Put the sliced zucchini in a medium pot and cover with water.
Bring to a boil and cook for 2 minutes; drain and rinse with cold water to stop cooking.
Assemble
Arrange the zucchini in the pie plate in an overlapping circular pattern.
Season with salt and pepper between layers.
Top with Parmesan cheese and drizzle with melted butter.
Bake
Bake at 400°F for 30 minutes, then bake at 475°F for another 10 minutes until golden brown.
Nutrition, whole recipe (rough)
What these numbers assume: 5 portions
| Ingredient | Portion assumed | kcal |
|---|---|---|
| Parmesan Cheese | 1 oz (28g) | 110 |
| Butter | 1 tbsp (14g) | 102 |
| Cucumber | 1/2 cup sliced (52g) | 16 |
| Black Pepper | 1 tsp ground (2.3g) | 6 |
| Salt | 1 tsp (6g) | 0 |
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.
-
Parmesan cheese + buttertop 9% of all pairsSmell alikemoderateCooked together4,163 recipes
Shared aroma: guaiacol (smoky, sweet).
-
Pepper + parmesan cheesetop 14% of all pairsSmell alikemoderateCooked together5,322 recipes
Shared aroma: ethyl 2-methylbutyrate (fruity, apple).
-
Pepper + buttertop 21% of all pairsSmell alikemoderateCooked together85,593 recipes
Shared aroma: trans-2-nonenal (cardboard, fatty).
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Zucchini
- Forms the bulk of the dish and releases moisture as it cooks, giving a tender layered texture.
- Parmesan cheese
- Melts and browns on top, adding savory flavor and a golden crust.
- Butter
- Adds richness and helps the top brown evenly in the oven.
The step that matters
Blanching and draining the zucchini. Boiling for only 2 minutes and rinsing in cold water stops cooking and softens the slices slightly. Draining well matters because excess water left in the zucchini will pool in the dish and make the gratin watery.
“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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