Preheat the oven to 350°F and lightly spray the donut pans with pan spray

Combine the ground flax seed with the hot water and whisk smooth

Let stand for at least 5 minutes to thicken to a paste

In a large mixing bowl combine the plant milk, melted coconut oil, vanilla extract, brown sugar and flax paste and whisk smooth

Add the sifted flour, cocoa powder, salt & baking soda and whisk smooth.

Transfer batter to a pastry bag and pipe almost to the top into each of the lightly greased cavities.

Bake in a preheated 350°F oven for approximately 10-12 minutes for the larger donuts (8 minutes for the mini sized donuts pan). or when they spring back when gently pressed they are done.

Next prepare the buttercream recipe as per the instructions on that page and at the last stage of mixing add the cocoa powder, mix smooth

Once the donuts have cooled you can fill the centers with chocolate buttercream, add the toasted walnuts & marshmallows & drizzle with optional ganache sauce.

Of course if you DOUBLE this recipe you can make the Double Deckers like I did in the video!