Preheat oven to 425°.
Lightly spoon flour into a dry measuring cup; level with a knife. Combine flour and next 3 ingredients in a bowl. Cut in butter with a pastry blender or 2 knives until mixture resembles coarse meal. Stir in grated Parmesan cheese and basil. Add buttermilk, stirring just until moist.
Spoon dough evenly into 8 mounds on a baking sheet coated with cooking spray. Lightly coat tops of biscuits with cooking spray, and sprinkle with finely shredded Parmesan cheese.
Bake at 425° for 10 to 12 minutes or until golden. Serve immediately.