Preheat oven to 450°.
Lightly spoon flour into dry measuring cups; level with a knife. Combine flour, baking powder, salt, and pepper in a medium bowl; stir well with a whisk. Cut in butter with a pastry blender or 2 knives until mixture resembles coarse meal. Add cheese; toss well to combine. Add buttermilk; stir just until moist. Drop dough into 8 equal mounds on a baking sheet coated with cooking spray. Bake at 450° for 13 minutes or until edges are lightly browned.