Lynn's Recipes - Lemon-Raspberry Muffins

Ingredients

• 1 lemon
• ½ cup sugar
• 1 cup nonfat buttermilk
• 1/3 cup canola oil
• 1 egg
• 1 teaspoon vanilla extract
• 1 cup white whole-wheat flour
• 1 cup all-purpose flour
• 1 teaspoons baking powder
• 1 teaspoon baking soda
• ¼ teaspoon salt
• 1-1/2 cups frozen raspberries (do not thaw)