Peel and slice the sprouted potatoes into thin, even slices.
Set aside in cold water to prevent browning.
2. Make the Cream Mixture
In a saucepan, melt butter over medium heat.
Add minced garlic and cook until fragrant, about 1 minute.
Stir in cream and milk, season with salt, pepper, and nutmeg (if using). Heat gently but do not boil.
3. Assemble the Gratin
Preheat oven to 180°C (350°F).
Grease a baking dish with butter.
Layer half of the potato slices in the dish.
Pour over half of the cream mixture and sprinkle half of the grated cheese.
Repeat with the remaining potatoes, cream, and cheese.
4. Bake to Perfection
Cover with aluminum foil and bake for 40 minutes.
Remove the foil and bake for an additional 15–20 minutes, until the top is golden brown and bubbling.
5. Serve
Let the gratin rest for 5–10 minutes before serving to allow it to set.
Serve warm as a comforting side dish or a main with a crisp salad.
Tips & Variations
