Chocolate Chocolate Chip Zucchini Muffins

I wanted a muffin with zucchini that reminded me of the chocolate chocolate chip muffins from Costco. These weren't them but they were still rather tasty. I will admit they were a little dry so perhaps some applesauce in the mix will help later. I adapted the recipe from The Zucchini Cookbook by Paula Simmons for Zucchini Muffins.
I used frozen grated zucchini - if you use frozen as well, let thaw just enough to make it measureable but not enough so that it's soupy.

Chocolate Chocolate Chip Zucchini Muffins
2 cups flour (I used 1 1/2 cups AP flour and 1/2 cup whole wheat pastry flour with 2 TB flax meal)
1 TB baking powder
4 TB cocoa
1/2 cup sugar
2 TB butter or margarine, soft
1 cup finely chopped zucchini
1 egg
3/4 cup milk
1 cup chocolate chips
Mix dry ingredients in a bowl. Mix in butter until resembles really dry crumbs (it won't all combine which is okay). Add zucchini and mix some to break up zucchini into the flour. Add egg and mix well. Drizzle in milk and mix. Stir in chocolate chips.
Spoon into greased muffin tins. Bake at 400 for 20-30 minutes or until a toothpick inserted in the middle comes out clean.