Lightly grease your donut pans & preheat the oven to 350F
Add the vinegar to the plant milk & let stand to thicken while you measure the other ingredients *soy milk is the only milk that will thicken but feel free to use any plant milk you prefer
Combine the hot water with the flax meal & also let that stand to thicken
In a large mixing bowl combine the flour, sugar, salt, baking soda & cocoa powder and whisk or sift to combine evenly
Now add all the liquid ingredients (the flax paste, plant milk & vinegar mixture) along with the vegetable oil & vanilla extract to the dry ingredients and whisk smooth
Portion the batter amongst the prepared donut pans, you will fill almost to the top but not quite & there will be batter left in the bowl for 3 more donuts.
Bake the first 12 for 12-15 minutes then let them cool slightly, turn them out onto a cooling rack & then wash, dry & re-grease 3 of the cavities in 1 donut pan for the remaining 3 donuts
Meanwhile combine the confectioners sugar, honee & plant milk in a large mixing bowl & whisk the glaze smooth
Dip the slightly cooled donuts in the glaze flipping them to coat both sides then place on a cooling rack & allow the excess to drip off
Roll them in coconut if you wish!