
Mashed Potatoes au Gratin combines the creamy, buttery, comfort of mashed potatoes with the golden cheesy crust of au gratin.
Set your oven to 400°F / 204°C.
Wash, peel and cut potatoes into equal cubes. Boil for 20-25 minutes until fork tender. Strain the water and return back to the pot.
Add the heavy cream, butter, salt and garlic to a small saucepan. Heat up over low heat until steaming.
Lightly spread the mashed potatoes in a medium size, shallow casserole dish with the back of a spoon. I used an oval, 11 inch long dish. Top with a layer of thinly sliced potatoes and gruyere. Cover with foil.
Bake for 25 minutes. Then, remove the foil and add parmesan on top. Bake for an additional 20 minutes uncovered or until golden and bubbly. Broil in the last 2-3 minutes for extra crisp. Best served hot. Keep covered in the oven until ready to serve.