Preheat oven to 350°F. Spray a donut pan with cooking spray, set aside.
In a mixing bowl, stir together the egg, apple butter, applesauce, almond milk, melted butter, and vanilla until well-mixed. Set aside.
In a second mixing bowl, stir together the flour, brown sugar, salt, baking powder, baking soda, cinnamon, cloves and nutmeg until well-mixed.
Add the dry mixture to the wet mixture, and stir until just combined—do not overmix.
Fill the prepared donut pan with the batter, making sure to leave the center hole uncovered, and only filling the spaces up about halfway.
Bake in preheated oven for 8-10 minutes, or until the tops are just turning golden, and a toothpick inserted in the middle of the donut comes out clean.
Remove from oven, and immediately remove the donuts to a wire cooling rack.
To glaze: whisk together all glaze ingredients until very smooth. Once donuts have cooled completely, dip in the glaze, and let set up on a wire rack until solidified.
Notes
Don't have a donut pan? No problem! Pour the batter into a floured Bundt pan and bake for 25-30 minutes, or until a toothpick inserted into the center comes out clean. Let cool completely, invert over a plate and remove from the pan. Then drizzle with the maple glaze.