Chocolate Donut
In a medium-sized mixing bowl, mix the flour, cocoa powder, baking soda, baking powder, and salt, then set it aside. In a small bowl, mix the milk and espresso powder, and set that aside as well. In a large bowl, cream the butter, sugar, and vanilla until light and fluffy, about 1 1/2 minutes. Add the eggs one at a time, beating well after each addition. Then, mix in the yogurt until combined.