Orange Mocha Muffins

Serves 30 muffins

1 2/3 cups whole wheat flour
1/2 cup baking cocoa
1/4 cup oat bran
1/4 cup sugar
1/4 cup packed brown sugar
2 tablespoons nonfat dry milk powder
1 tablespoon instant coffee granules
1 teaspoon baking powder
1 teaspoon baking soda
1/4 teaspoon salt
2 eggs
2 cups plain yogurt
6 tablespoons butter or margarine, softened
1 tablespoon finely grated orange peel
3/4 cup semisweet chocolate chips

In a large bowl, combine the first 10 ingredients. In another bowl, beat the eggs, yogurt, butter and orange peel. Stir into dry ingredients just until moistened. Fold in chocolate chips. Fill greased or paper-lined muffin cups two-thirds full. Bake at 375 degrees F for 15-20 minutes or until a toothpick comes out clean. Cool for 5 minutes before removing from pans to wire racks. Serve warm.