The best donut is a mulch donut. Its the only kind that burns calories instead of making your waist line bigger.
The best filling for the best donut is something native, something edible, or something native and edible.
Aronia melanocarpa, the aronia berry, is perfect. This native shrub is great for native bees, has beautiful white flowers in the spring, attractive red leaves in the fall, and the berries…are edible.
They are incredibly nutritious, very low in sugar and exceptionally astringent. Which makes them a berry with a striking and flavorful first impression, but not necessarily a tasty one. If you can’t get over the mouth-pucker they cause, try baking them in a low sugar oatmeal cookie or throw them in a smoothie with kale and an apple.