Why it works: Cheese and butter are a kitchen classic. They rank in the top 8% of all ingredient pairs, and cooks put them together in 7,962 recipes. Both carry delta-dodecalactone, which smells sweet, creamy. The science ↓
Potatoes Au Gratin
Ingredients
Directions
The book gives no oven temperature. The 350°F (175°C) in the steps was added when the recipe was transcribed, as a starting point.
Assemble
Preheat the oven to 350°F (175°C).
Place the diced potatoes in a shallow serving dish.
Add the cheese and white sauce over the potatoes.
Top and bake
Cover with cracker crumbs moistened with melted butter.
Bake until the crumbs are browned.
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.
Photo for illustrative purposes only · Contact us to use it
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.
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Cheese + buttertop 8% of all pairsSmell alikemoderateCooked together7,962 recipes
Shared aroma: delta-dodecalactone (sweet, creamy).
-
Potato + buttertop 13% of all pairsSmell alikemoderateCooked together6,456 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
-
Sauce + buttertop 15% of all pairsSmell alikelowCooked together15,338 recipes
Shared aroma: ethanol (alcoholic, ethereal).
-
Potato + cheesetop 15% of all pairsSmell alikemoderateCooked together959 recipes
Shared aroma: sotolon (curry, maple).
-
Sauce + cheesetop 19% of all pairsSmell alikelowCooked together1,987 recipes
Shared aroma: ethanol (alcoholic, ethereal).
Sauce and butter barely smell alike, yet cooks put them together in 15,338 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
- Potatoes
- Form the bulk of the dish, providing a soft, starchy body under the topping.
- White sauce
- Adds moisture and creaminess that coats the potatoes as they bake.
- Cheese
- Melts into the sauce, adding richness and savory flavor.
- Cracker crumbs
- Form a crisp topping that browns in the oven.
- Butter
- Moistens the cracker crumbs and helps them brown evenly.
The step that matters
Bake until the crumbs are browned. Browning depends on heat and time. Underbaking leaves the topping pale and soft, while overbaking can dry the sauce and harden the cheese. Look for an even golden top.
Swap the potato
How well each one fits the dish's main ingredients (sauce, cheese, butter):
- Mustardfits better
- Tomatofits about as well
- Onionfits about as well
- Potatothe original
Fit is the average pairing score against sauce, cheese, butter. 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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