These are the same biscuits we make for the biscuit sandwiches served at Serious Biscuit, downstairs from our pizza joint, Serious Pie Westlake, but at Serious Biscuit, we cut the dough into bigger squares, about 3 1/2 inches, bake them, split them in half, and fill them with everything from fennel sausage with fried egg, melted fontina, and spicy-sweet pepper relish to crispy fried chicken with fried egg and savory black pepper gravy. If you want to make your own biscuit sandwiches, just cut the squares a little bigger than directed in this recipe, bake them, split them in half and fill them. This smaller, 2 1/2-inch biscuit is perfect for breakfast or brunch.