1. Preparing Potatoes:

• Wash and slice the potatoes on a mandolin to about 1/4 inch thick.

2. Cream Mixture:

• In a large pot, combine heavy cream, 1 cup of shredded Parmesan cheese, minced garlic, and diced green chile.

3. Seasoning:

• Season the cream mixture with salt and pepper according to your taste.

4. Mixing with Potatoes:

• Add the sliced potatoes to the cream mixture, ensuring they are well coated.

5. Baking:

• Preheat your oven to 325°F (163°C).
• Transfer the potato mixture to a baking dish suitable for a gratin.
• Cover the dish with foil.

6. Cooking:

• Bake in the preheated oven for approximately 2 hours, or until the potatoes reach your desired texture.
• When there’s 30 minutes left, remove foil, and sprinkle the rest of the parmesan cheese on top.

7. Cooling:

• Once the gratin is cooked, remove it from the oven and let it cool.
• Sprinkle some chopped spring onions on top before serving