Ingredients for - Two-Potato Gratin

1. Sweet potatoes, peeled and thinly sliced 3 large
2. Potatoes, peeled and thinly sliced 4 medium
3. Onion, thinly sliced ½ medium
4. Vegetable broth, or more as needed 1 ½ cups
5. Shredded Gruyere cheese 2 cups

How to cook deliciously - Two-Potato Gratin

1 . Stage

Preheat the oven to 350 degrees F (175 degrees C).

2 . Stage

Place potatoes and sweet potatoes in a large baking dish. Mix in onion. Add 1 to 1 1/4 cups vegetable both.

3 . Stage

Bake in the preheated oven until potatoes start to soften, about 20 minutes. Remove from oven and add Gruyere cheese. Pour in more vegetable broth if casserole looks dry.

4 . Stage

Return to the oven and continue baking until potatoes are tender, about 30 minutes. Stir and serve hot.