Mixed Berry Muffins...a healthier version on BakeSpace.com

Ingredients

• 1 cup all purpose flour, divided
• 1 cup white whole wheat flour
• 2 teaspoons baking powder
• 1/2 cup granulated sugar, plus an additional 2 tablespoons for topping
• 1/4 teaspoon salt
• 1 tablespoon grated orange peel
• 1 1/2 cups frozen mixed berries
• 1 (6 oz) container low-fat Greek yogurt (I used strawberry)
• 1/2 cup low-fat buttermilk
• 1 egg, slightly beaten
• 1/4 cup canola oil or coconut oil
• 1/2 teaspoon vanilla