Cheese flan

Preparation:

Preparation: Peel the potatoes and cut them in half. Boil them in water and milk (in equal parts) for 30 minutes, adding a pinch of salt. Pass them through a potato masher after draining them. Add 20 g of softened butter and the grated Parmesan. Make a puree by mixing with a wooden spoon. Add the egg and salt. Put half of the puree in a buttered pan and cover with the ham and the grated provolone, setting aside three tablespoons. Pass a final layer of puree and level with a spatula. Bake in a preheated oven at 180 degrees. A few minutes before the end of cooking, sprinkle the flan with the remaining provolone cheese to brown it. You can also brown the surface under the grill.