This is not an overly sweet muffin. If you want something really sweet you can increase the sugars.
1 1/2 c Buttermilk
1 1/2 c wheat bran
2 Large Eggs, beaten
1/3 c vegetable oil
4 Tbs granulated sugar
2/3 c brown sugar
2 tsp vanilla
2 c frozen zucchini with juice OR 1 c finely grated zucchini juice squeezed out and added
3/4 c cocoa powder
1 1/3 whole wheat flour
2 tsp baking powder
2 tsp baking soda
1/2 tsp salt
2 tsp cinnamon
1/2 tsp nutmeg
2 cups chocolate chips - semi sweet
Instructions
1. In a medium sized bowl combine the buttermilk and wheat bran. Allow bran to soften.
2.Preheat oven to 425f. Lightly spray or line with paper cups 2 muffin tins
3. Once bran has soften stir in the beaten eggs, oil, sugars, vanilla and grated zucchini. Stir to combine.
4. In a larger bowl combine the cocoa, flour, baking soda and backing powder, salt, cinnamon and nutmeg. Thoroughly combine together making sure there are no lumps of caked baking soda. Gradually pour the wet ingredients into the bowl of dry ingredients and mix until just combined, Gradually mix in the chocolate chips saving some to sprinkle on the tops of the muffins.
5. Scoop the batter into the prepared pan. This should make 20-24 muffins. Place in the oven and bake for 14-16 minutes or until the centers spring back when touched. Remove from the oven and allow to cool for 5 minutes until to move to cooling rack.