Super Easy Potato Gratin

Super easy potato al gratin recipe

The Spruce / Ali Redmond

  • Total: 60 mins
  • Prep: 15 mins
  • Cook: 45 mins
  • Servings: 6 servings
Nutritional Guidelines (per serving)
552 Calories
35g Fat
40g Carbs
21g Protein
See Full Nutritional Guidelines Hide Full Nutritional Guidelines
Nutrition Facts
Servings: 6
Amount per serving
Calories 552
% Daily Value*
Total Fat 35g 46%
Saturated Fat 22g 109%
Cholesterol 111mg 37%
Sodium 449mg 20%
Total Carbohydrate 40g 14%
Dietary Fiber 4g 13%
Protein 21g
Calcium 568mg 44%
*The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
(Nutrition information is calculated using an ingredient database and should be considered an estimate.)

Potato gratin is one of those dishes that is so simple to make, but the results are fantastic. A perfect gratin is thick, rich, and creamy with soft but intact potatoes and decadent cheesy flavor.

This recipe is loosely based on Orlando Murrin's recipe in "A Table in the Tarn: Living, Eating, and Cooking in Rural France." It's a classic French recipe, with thin-sliced potatoes, garlic-infused cream, and gooey Gruyère and Brie cheese. The best potatoes for a gratin are floury types such as King Edward or a Maris Piper or any potato recommended for mashing.


  • 1 kilogram/2 pounds potatoes (floury, like King Edward or Maris Piper)
  • 235 milliliters/8 ounces milk (full fat if possible)
  • 235 milliliters/8 ounces double cream
  • 2 cloves garlic (lightly crushed, divided)
  • Salt, to taste
  • 1 dash freshly ground pepper
  • 1 dash nutmeg (freshly grated, or mace)
  • 125 grams/1/2 cup Gruyère cheese (or aged cheddar, grated)
  • 2 tablespoons plus 1 teaspoon butter (divided)
  • 125 grams/1/2 cup Brie cheese

Steps to Make It

  1. Gather the ingredients. Preheat the oven to 175 C / 350 F / Gas Mark 4.

    Ingredients for potatoes gratin
    The Spruce / Ali Redmond
  2. Peel, rinse, and dry the potatoes and slice as thinly as possible (a mandoline is good for this, but a sharp knife works too).

    Peel the potato
    The Spruce / Ali Redmond
  3. Place the potatoes, milk, cream, 1 crushed garlic clove, a pinch of salt, pepper, and nutmeg in a large saucepan.

    Place potatoes and milk in frying pan
    The Spruce / Ali Redmond
  4. Bring to a very gentle boil and simmer for a few minutes until the cream is noticeably thicker.

    Bring to a boil
    The Spruce / Ali Redmond
  5. Remove from the heat and add the grated Gruyère cheese. Stir until the cheese has melted.

    Add grated Gruyere
    The Spruce / Ali Redmond
  6. Generously grease an ovenproof dish with 1 teaspoon butter, then rub the dish all over with the remaining lightly crushed clove of garlic.

    Generously grease dish
    The Spruce / Ali Redmond
  7. Pour the potato mixture into the dish, using a spoon to gently move the potatoes in the cream mixture to make sure they are all covered.

    Pour potato mixture into dish
    The Spruce / Ali Redmond
  8. Finely slice the Brie into long strips and lay across the top of the gratin. Dot the surface with the remaining 1 tablespoon butter. Season with salt and pepper.

    Slice Brie
    The Spruce / Ali Redmond
  9. Bake in the preheated oven for about 40 minutes, or until the top is bubbly and golden brown and the potatoes are soft when pierced with a sharp knife. If the top is browning too quickly before the potatoes are cooked, cover with a piece of aluminum foil.

    Bake gratin
    The Spruce / Ali Redmond
  10. Serve immediately, or if you want to serve the potatoes later, leave to cool completely. Enjoy.

    Potato al gratin
    The Spruce / Ali Redmond


Another way to serve the gratin is to allow it to go cold and then to use a cutter to cut it into rounds. Place the rounds on a greased baking sheet and reheat in a 350 F oven for approximately 10 minutes.