Chocolate Muffins

 4 eggs

2 Cups buttermilk

4 tsp. Vanilla

2 sticks butter slightly melted

3 1/2 cups flour

1 1/3 dark cocoa

2 1/2 brown sugar

2 tsp. Baking powder

2 tsp. Baking soda

1 tsp. Salt

2 Cups chocolate chips 

Bake at 350• for 15 minutes