Custrd is out now on the App Store and Google Play — Try it free for 7 days →
Back to recipes

25-Min Potato Gratin

Creamy layers of potato, cheese, and aromatics baked until golden. A French classic stripped down to weeknight speed—no cream, just butter, stock, and gruyère.

Total time
25 min
Servings
4
Calories
385
Protein
16g
25-Min Potato Gratin
comfortheartyfrenchvegetariangluten-freecheesecreamytender

Ingredients

6 items — tap to check off

Missing one? Custrd suggests a swap that works.

Open the app

Instructions

  1. Step 1

    Preheat oven to 425°F. Slice potatoes into 1/8-inch-thin rounds using a mandoline or knife.

  2. Step 2

    Butter a 9-inch baking dish generously. Layer half the potatoes, salting each layer lightly.

  3. Step 3

    Scatter garlic and thyme over potatoes. Top with half the gruyère, then remaining potatoes.

  4. Step 4

    Pour stock slowly over the top until it reaches the potato level. Dot with remaining butter.

  5. Step 5

    Top with remaining cheese. Bake uncovered 18–20 minutes until edges are golden and bubbling.

  6. Step 6

    Rest 2 minutes, then serve hot straight from the dish.

Tools you’ll need

  • 9-inch baking dish
  • mandoline or sharp knife
  • box grater
  • measuring cups and spoons

Cook smarter

Get matched recipes for what’s in your fridge

Custrd is an iPhone and Android app that finds real recipes from the ingredients you already have. No more grocery-list aspirations. Try it free for 7 days.