Combine first 6 ingredients in a medium bowl; make a well incenter of mixture. Combine egg, buttermilk, and oil; add to dry ingredients, stirring just until dry ingredients are moistened.
Spoon batter into muffin pans coated with cooking spray, filling two-thirds full. Sprinkle evenly with Fruited Streusel Topping. Bake at 400° for 15 minutes or until golden. Remove from pans immediately.