Name: Cauliflower Au Gratin
Ingredients: 1 cauliflower; ½ cup boiling white stock; 1 oz. butter; 1 oz. flour; ½ cup water; 2 oz. Parmesan cheese; Cayenne pepper to taste; ¼ teaspoon coarse sea salt; 1 tablespoon cream

Why it works: Butter and cream are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 41,516 recipes. Both carry delta-dodecalactone, which smells sweet, creamy. The science ↓

Cauliflower Au Gratin

Oven, in the book's wordsA hot oven

Ingredients

Directions

The book says “a hot oven”. The 400°F (200°C) in the steps is the modern equivalent, not the book's own figure.

Prepare the cauliflower

Trim, wash, and boil the cauliflower until tender.
Drain and place it in a fireproof dish.

Make the sauce

In a saucepan, melt the butter, then stir in the flour and water to make a thick sauce.
Add the boiling white stock, seasonings, cream, and half of the Parmesan cheese to the sauce.

Bake and serve

Coat the cauliflower with the sauce and sprinkle the remaining cheese on top.
Brown in a 400°F (200°C) oven until golden.

Recipe from a historical cookbook (Internet Archive).

Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.

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.

Butter + creamtop 8% of all pairs

Smell alikemoderate

Cooked together41,516 recipes

Shared aroma: delta-dodecalactone (sweet, creamy).
Butter + parmesan cheesetop 9% of all pairs

Smell alikemoderate

Cooked together4,163 recipes

Shared aroma: guaiacol (smoky, sweet).
Cauliflower + peppertop 9% of all pairs

Smell alikemoderate

Cooked together1,113 recipes

Shared aroma: 4'-methylacetophenone (bitter almond).
Cauliflower + flourtop 12% of all pairs

Smell alikemoderate

Cooked together569 recipes

Shared aroma: isobutyraldehyde (malty, green).
Butter + flourtop 12% of all pairs

Smell alikelow

Cooked together124,287 recipes

Shared aroma: isobutyraldehyde (malty, green).

Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

What each ingredient does

Cauliflower: Forms the main body of the dish and softens into a tender base when boiled.
Butter: Enriches the sauce and carries flavour, with flour forming its thickened base.
Flour: Thickens the butter and water into a smooth sauce that coats the cauliflower.
Boiling white stock: Adds savoury depth and liquid that loosens the thickened sauce.
Parmesan cheese: Melts into the sauce and browns on top, adding savoury flavour and a golden crust.
Cream: Adds richness and a silkier texture to the sauce.

The step that matters

Brown in a 400°F (200°C) oven until golden. Browning relies on the Maillard reaction between proteins and sugars in the cheese and sauce, which needs dry heat. Removing the dish too early leaves the top pale and underdeveloped, while leaving it too long can scorch the cheese.

Swap the cauliflower

How well each one fits the dish's main ingredients (butter, flour, parmesan cheese, pepper, cream):

Spinachfits better
Asparagusfits better
Potatofits better
Cauliflowerthe original

Fit is the average pairing score against butter, flour, parmesan cheese, pepper, cream. 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.