Blueberry Cream Cheese Muffins

Ingredients:
1 package white (vanilla) cake mix
1 cup milk
1/3 cup vegetable oil
2 (3-ounce) package cream cheese, softened
3 egg whites
1 1/2 cups blueberries
2 tablespoons coarse sugar crystals(decorating or granulated sugar)

Directions:
1. Heat oven to 375 degrees F. Grease bottoms only of 24 medium muffin cups, 2 1/2 by 1 1/4 inches, with shortening, or line with paper baking cups.
2. Beat cake mix, milk, oil, cream cheese, and egg whites in a large bowl with electric mixer on low speed for 30 seconds; beat on medium speed for 2 minutes. Gently stir in blueberries. Divide batter evenly among muffin cups. Sprinkle with sugar crystals.
3. Bake 15 to 20 minutes or until toothpick inserted in center comes out clean. Serve warm or cool. Store tightly covered at room temperature.