Baked Chocolate Donuts with Chocolate Ganache and Sprinkles

"The donuts are soft and fluffy without being airy, dry, or overly cakey. I used both buttermilk and oil to ensure they stay moist and springy. They and aren't overly chocolaty or too bold, nor are they overly sweet. They remind me of classic bakery chocolate cake donuts. I made 6 donuts and 4 large donut holes. Without the donut holes you'll likely yield 8 donuts. Don't overbake because just 1 to 2 extra minutes can make them very dry. Baking times will vary based on how full your pans are filled and how many pans in the oven at once. The ganache is fudgy, smooth, and the perfect complement...."