Dark Chocolate Walnut Muffins

http://treatstrinkets.blogspot.it/2013/05/dark-chocolate-walnut-muffins.html

Ingredients
2 cups whole wheat flour
3/4 cup Hershey's Special Dark Cocoa Powder*
1 tsp. baking soda
3/4 tsp. salt
1 cup low fat milk (I used skim)**
3/4 cup packed dark brown sugar
3/4 cup unsweetened applesauce
1 small banana, mashed
1 tbsp. molasses
1 tsp. vanilla extract
1 tsp. apple cider vinegar
3/4 cup chopped walnuts, plus more for sprinkling
1/2 cup bittersweet chocolate chips

Preheat the oven to 350 F. Line 2 muffin tins with 16 paper liners.
In a large mixing bowl, mix together the dry ingredients. In a separate bowl, mix the wet ingredients. Add the wet to the dry, mixing until well incorporated. Fold in the chopped walnuts and chocolate chips.
Fill the paper liners about 3/4 of the way with batter. Sprinkle with chopped walnuts. Bake about 16 minutes, or until the tops spring back when gently pressed. Allow to cool completely on wire rack