Orange Chocolate Muffins

1 cup all-purpose flour
4 (1 ounce) squares semisweet chocolate, grated
2 teaspoons baking powder
1 teaspoon baking soda
1/2 teaspoon salt
6 tablespoons stick margarine, softened
3/4 cup white sugar
2 eggs
1 tablespoon orange zest
1/4 cup orange juice
1/2 cup buttermilk


Preheat oven to 400 degrees F. Lightly grease a 12 cup muffin pan. In a medium bowl, mix flour, semisweet chocolate, baking powder, baking soda, and salt. In a separate medium bowl, cream together margarine and sugar. Beat in the eggs one at a time. Mix in the orange zest, orange juice, and buttermilk. Pour into the flour mixture. Mix until evenly moist, and transfer to the prepared muffin pan. In the preheated oven, bake 15 to 20 minutes, until a toothpick inserted into the center of a muffin comes out clean. Remove to wire racks to cool.