If you don’t have a donut pan you can make a substitute with tinfoil and a muffin pan. Using a square of tinfoil about 6″ x 6″ (15 cm x 15 cm) tent up a firm center nob in the middle of the foil. Make one for each donut. Then press each of the foils into the muffin circles, keeping the center nob and smoothing the foil around the edges of each muffin indent. Pour the batter into the foil structure.
You can substitute the ½ cup of coconut flour with 2 cups blanched almond flour. If you use almond flour, use 2 eggs instead of the default 6 eggs.