Potato and Gruyère Gratin

Name: Potato and Gruyère Gratin
Prep time: 25 min
Cook time: 1 h 10 min
Total time: 1 h 35 min
Yield: 8
Cuisine: French
Ingredients: 3 lb Yukon Gold potatoes (sliced 1/8 inch); 2 cup heavy cream; 1 clove garlic (grated); 1 1/2 tsp salt; 1/2 tsp pepper; 2 tsp thyme leaves; 2 cup grated Gruyère; 1/2 cup grated Parmesan

Prep 25 min Cook 1 hr 10 min Total 1 hr 35 min Servings 8

By Lukasz Jagiello

Published Oct 11, 2026 · Updated Oct 11, 2026

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About this recipe

I only post recipes that I have tried and verified and are good to my taste — all taste may vary.

Slice potatoes evenly with a mandoline so every layer cooks at the same rate.

Ingredients

3 lb Yukon Gold potatoes sliced 1/8 inch
2 cup heavy cream
1 clove garlic grated
1 1/2 tsp salt
1/2 tsp pepper
2 tsp thyme leaves
2 cup grated Gruyère
1/2 cup grated Parmesan

Method

01

Heat oven to 375°F. Butter a 2-quart gratin dish.
02

Whisk cream, garlic, salt, pepper and thyme.
03

Layer a third of the potatoes, a third of the cream and a third of the cheeses; repeat twice.
04

Cover with foil and bake 40 minutes; uncover and bake 25–30 minutes until golden and tender.
05

Rest 15 minutes before cutting.

Notes & swaps

Slice potatoes evenly with a mandoline so every layer cooks at the same rate.

Potato and Gruyère Gratin

Ingredients

Method

Notes & swaps

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