How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Potato And Onion Gratin?

You need 9 ingredients. The key ingredients include: 3 tablespoons olive oil divided, plus more for brushing, 4 cups onions thinly sliced, 3 large garlic cloves chopped, 1 tablespoon chopped fresh thyme, and more.

Is Potato And Onion Gratin suitable as soups & stews?

Yes, Potato And Onion Gratin falls under the Soups & Stews category and is a great choice for this type of meal.

How do I store leftover Potato And Onion Gratin?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Potato And Onion Gratin Recipe

Name: Potato And Onion Gratin
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 3 tablespoons olive oil divided, plus more for brushing; 4 cups onions thinly sliced; 3 large garlic cloves chopped; 1 tablespoon chopped fresh thyme; 1 teaspoon fresh rosemary chopped; 2 pounds yukon gold potatoes peeled and sliced into 1/8- inch-thick rounds; 3/4 teaspoon salt; 3/4 teaspoon coarsely ground black pepper; 1 1/4 cups low salt chicken broth or sub with vegetable broth to make this vegetarian!

Try this homemade Potato And Onion Gratin recipe the whole family will love. Made with olive oil, onions, garlic and thyme. Easy step-by-step instructio…

This Potato And Onion Gratin relies on simple, everyday ingredients such as onions thinly sliced, large garlic cloves chopped, chopped fresh thyme and fresh rosemary chopped. It comes together quickly and makes 4 servings, at about 611 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It works as a light main on its own or as a starter alongside crusty bread, and it's just as good for a cozy night in as it is for feeding a crowd. Leftovers keep well, so it's a smart choice for meal prep too.

Updated Jun 30, 2026

Serves 4 Soups & Stews

Servings: persons

3 tablespoons olive oil divided, plus more for brushing
4 cups onions thinly sliced
3 large garlic cloves chopped
1 tablespoon chopped fresh thyme
1 teaspoon fresh rosemary chopped
2 pounds yukon gold potatoes peeled and sliced into 1/8- inch-thick rounds
3/4 teaspoon salt
3/4 teaspoon coarsely ground black pepper
1 1/4 cups low salt chicken broth or sub with vegetable broth to make this vegetarian!

Frequently Asked Questions

Quick Info

Servings
4 servings
Calories
611 kcal
Category
Soups & Stews

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