Chocolate Oatmeal Nut Muffins Recipe

• 1 cup buttermilk
• 1 cup quick-cooking rolled oats
• 1 egg, beaten
• 1/3 cup vegetable oil
• 3/4 cup all-purpose flour
• 2/3 cup brown sugar, packed
• 1/4 cup cocoa
• 1 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon salt
• 1 teaspoon vanilla extract
• 3/4 cup walnuts, coarsely chopped
• 1/3 cup mini-chocolate chips
• Powdered sugar (optional)

Directions