– 1.5 kg (about 3 lbs) of potatoes, peeled and thinly sliced
– 1 cup heavy cream
– 1 cup milk
– 2 tablespoons all-purpose flour
– 1 teaspoon salt
– 1/2 teaspoon black pepper
– 1/2 teaspoon garlic powder
– 1/2 teaspoon onion powder
– 1/4 teaspoon paprika
– 1 cup shredded cheddar cheese
– 1/2 cup grated Parmesan cheese
– 1 tablespoon unsalted butter, cut into small pieces