1Heat oven to 375°F. Place paper baking cups in each of 18 regular-size muffin cups.
2In large bowl, mix cake mix, cornmeal, water, butter, vanilla, eggs and orange peel just until dry ingredients are moistened. Gently stir in blueberries. Spoon evenly into muffin cups; sprinkle with sugar.
3Bake 15 to 20 minutes or until toothpick inserted in center comes out clean. Immediately remove from pan. Serve warm or cool.