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Creamy Potato Gratin with Caramelised Onions

The sweetness of the caramelised onions cuts through the rich creaminess of this dauphinoise-style bake

By bbcgoodfood · From Open Recipes · 9 ingredients
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Creamy Potato Gratin with Caramelised Onions

Why it works: Onion and potato are a kitchen classic. They rank in the top 3% of all ingredient pairs, and cooks put them together in 9,023 recipes. Both carry 2-isopropyl-3-methoxypyrazine, which smells earthy, pea. The science ↓

Creamy Potato Gratin with Caramelised Onions

Serves 8
Prep20 min

Ingredients

Directions

Step-by-step directions aren't available for this recipe. See the full recipe at the source →

Nutrition, whole recipe (rough)

740Calories
24 gProtein
46 gFat
61 gCarbs
What these numbers assume: 8 portions
IngredientPortion assumedkcal
Potato1 medium (173g) baked161
Milk1 cup (244ml) whole149
Olive Oil1 tbsp (14g)119
Parmesan Cheese1 oz (28g)110
Butter1 tbsp (14g)102
Cream1 tbsp (15ml) heavy51
Onion1 medium (110g)44
Thyme1 tsp dried (1.4g)4

One typical portion per ingredient; the recipe's quantities are not counted. A rough guide only, not for medical or dietary planning.

By bbcgoodfood. Recipe from Open Recipes.

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.

  1. Onion + potatotop 3% of all pairs
    Smell alikemoderate
    Cooked together9,023 recipes

    Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).

  2. Olive + thymetop 4% of all pairs
    Smell alikestrong
    Cooked together4,948 recipes

    Shared aroma: methyl 2-methylbutyrate (apple, fatty).

  3. Thyme + potatotop 5% of all pairs
    Smell alikemoderate
    Cooked together1,586 recipes

    Shared aroma: 1-octen-3-one (mushroom, metallic).

  4. Olive + potatotop 7% of all pairs
    Smell alikemoderate
    Cooked together6,458 recipes

    Shared aroma: 2-undecenal (sweet).

  5. Onion + thymetop 7% of all pairs
    Smell alikemoderate
    Cooked together11,171 recipes

    Shared aroma: coumarin (sweet, hay).

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

Swap the thyme

How well each one fits the dish's main ingredients (olive, onion, cream, milk, potato, butter):

  1. Garlicfits better
  2. Thymethe original
  3. Parsleyfits about as well
  4. Capersfits about as well

Fit is the average pairing score against olive, onion, cream, milk, potato, butter. Candidates are from the same food group and used in at least 100 recipes.