In small bowl stir together flour, sugar, baking powder, cinnamon and salt. Set aside.
In large bowl stir together cereal and milk. Let stand 2 minutes or until cereal is softened. Add egg whites and oil. Beat well. Add flour mixture, stirring until just combined. Fold in blueberries. Spoon batter evenly into twelve 2 1/2-inch muffin cups coated with cooking spray or lined with paper bake cups.
Bake at 400°F about 18 minutes or until toothpick inserted near center comes out clean. Serve warm.