For the donuts

• 1 cup flour
• 1/2 cup sugar
• 1/4 cup natural cocoa powder
• 1/4 cup mini chocolate chips optional
• 1/2 teaspoon baking soda
• 1/4 teaspoon salt
• 1/2 teaspoon vanilla extract
• 1 large egg
• 6 tablespoons sour cream
• 1/4 cup milk
• 1/4 cup vegetable oil

For the glaze

• 1 1/2 cups powdered sugar
• 1/4 cup milk
• 1 teaspoon vanilla

To make the donuts

• Preheat oven to 375 degrees.
• In a medium mixing bowl, combine the flour, sugar, cocoa powder, chocolate chips, baking soda, and salt.
• In a small bowl, beat together the vanilla, egg, sour cream, milk, and oil.
• Stir the wet ingredients into the dry until just combined.
• Spoon in a greased donut pan.
• Bake for 8 minutes or until the tops spring back when you touch them.
• Let the donuts cool in the pan before glazing.

To make the glaze

• Whisk together the powdered sugar, milk, and vanilla until smooth.
• Dunk the donuts in the glaze to fully coat and place on a wire rack to set, about 5 minutes.