Chocolate Zucchini Muffins - Challenge Dairy

Ingredients

• ½ cup all-purpose flour
• ½ cup brown sugar
• ½ teaspoon cinnamon
• ¼ cup (½ stick) Challenge Butter, softened
• ½ cup chopped walnuts
• 2½ cups all-purpose flour
• 6 Tablespoons cocoa
• 1 teaspoon salt
• 1 teaspoon baking powder
• ½ teaspoon baking soda
• ¾ cup (1½ stick) Challenge Butter
• 1 cup sugar
• ¾ cup brown sugar
• 3 eggs
• 2½ cups grated zucchini (unpeeled)
• 1 teaspoon vanilla