Blueberry Buttermilk Donuts

I've been craving blueberries recently. Maybe it's my taste buds attempt at preserving summer. Maybe I'm not internally ready for the shift to pumpkin spice and apple crisp. Whatever the reason, I truly believe that nothing shouts Mid-August Sunday quite like Blueberry Buttermilk Donuts. These are SO easy to make because they're baked donuts. It's…