Whisk together 2 ½ cups flour, 4 teaspoons baking powder, 1 tablespoon sugar and 1 ½ teaspoons salt
Stir in 2 cups cold buttermilk until a shaggy dough is formed
Pour 1 stick melted butter into an 8-inch square baking dish
Place dough into prepared baking dish. Spread evenly with a spatula. Cut raw dough into nine squares
Bake at 450°F for 20-25 minutes
Bake at 425°F for glass or dark metal pans
