4 medium russet potatoes, peeled (about 2 pounds)
1 cup Cheddar cheese, grated
Kosher salt and freshly ground black pepper
1/2 cup ketchup
2 tablespoons harissa
6 tablespoons unsalted butter
4 large eggs
Soaking the grated potatoes will help remove the starch. If you don't have a cheesecloth, you can use a clean kitchen towel to squeeze liquid from the potatoes. If you don't have a 2-inch biscuit cutter, use the cap of a Mason jar.