Chocolate Bannana Muffins

1/2 cup butter, softened1 cup sugar2 eggs1 1/2 cups flour3 Tbs. cocoa1 tsp. baking soda1 tsp. salt1/2 tsp. cinnamon1 tsp. vanilla1 cup mashed banana1/2 cup sour cream1/2 cup finely chopped walnuts1 cup chocolate chips
*Cream butter and sugar. Add eggs. Add dry ingredients and mix well. Add vanilla, banana, sour cream, nuts and chocolate chips. Pour into muffin tins and bake at 350 degrees for 15-20 minutes.
props to Rachel Cunningham for this recipe :)