• First, preheat oven to 350°F.
• Next, coat donut pan (lightly) with oil of your choice. Then set aside.
• After, combine flax meal with water and then allow to sit for 5-8 minutes while thickening to make the flax eggs.
• Meanwhile, combine vinegar and room temperature almond milk then set aside.
• Afterwards, in a large bowl, whisk together cocoa, flour, baking soda, baking powder, sugars, and salt.
• Next, add flax eggs into your dry mixture and half of the almond milk mixture. Begin to mix with a rubber spatula, then add the remaining almond milk mixture, vanilla, and oil then stir until combined.
• Then, place mixture into a piping bag and fill donut pan ⅔ of the way. Next, bake for 13-15 minutes until they spring back when touched. Lastly, allow donuts to cool for 15 minutes before carefully removing to a wire rack.

Make frosting:

• First, combine all frosting ingredients except Oreos in a bowl. Then, use a spoon to spread frosting (it will be thick). Next, immediately sprinkle donuts with crushed cookies and a pinch of salt. Finally, allow to dry.