MIX 1-1/2 cups honey-flavored multi-grain cereal flakes with oat clusters, 1-1/3 cups flour and 1 Tbsp. Magic Baking Powder in large bowl; stir in 1-1/4 cups frozen blueberries. Beat 1 egg in medium bowl; mix in 1/2 cup sugar until well blended. Stir in 1 cup milk and 1/3 cup melted butter or margarine. Add to cereal mixture; stir just until moistened (batter will be lumpy).

SPOON batter into greased or paper-lined muffin pan, filling each cup two-thirds full.

BAKE at 400°F for 20 minutes or until golden brown. Makes 12 servings, 1 muffin each.