Step 1/4
- 1 clove garlic
- 300 g potatoes
- 300 g purple potatoes
- 300 g sweet potatoes
Peel and finely chop garlic and set aside. Peel and finely slice potatoes, purple potatoes, and sweet potatoes.
Step 2/4
- 100 g Emmentaler cheese
- salt
- pepper
- microwave-safe baking dish
Evenly layer half of the potatoes a microwave-safe baking dish. Season with salt and pepper. Sprinkle with three quarters of the shredded Emmentaler cheese. Then, layer the remaining potatoes, alternating yellow, purple, and sweet potatoes. Sprinkle remaining cheese on top.
Step 3/4
- 150 ml heavy cream
- 80 g butter
- salt
- pepper
- ground nutmeg
In a small bowl, mix finely chopped garlic with heavy cream and season to taste with salt, pepper, and ground nutmeg. Pour over potatoes and distribute butter in pieces on top.
Step 4/4
- oven with microwave function
Transfer the baking dish to an oven with microwave function and bake the three potato gratin for 25 min. at 180°C/350°F, 360W. Enjoy!