Whole Grain Blackberry Spice Muffins

Bahan-bahan (17 porsi)

• 1 cup whole wheat flour
• 1 cup all purpose flour
• 1 cup quick-cooking oats
• 1 cup packed dark brown sugar
• 1½ teaspoons baking powder
• ½ teaspoon baking soda
• ½ teaspoon salt
• ½ teaspoon allspice
• 1 cup nonfat milk
• 3 tablespoons butter, (melted)
• 1 teaspoon vanilla extract
• 1 large egg, (lightly beaten)
• 1½ cups frozen blackberries, (chopped coarsely)
• 1 tablespoon granulated white sugar