In a small bowl, whisk together the ground flaxseed and hot water. Let sit for 5 minutes.
In a mixing bowl, add all the ingredients, including the flaxseed mixture. Stir well.
On a parchment paper-lined cookie sheet or a cookie sheet lined with a Silpat, drop cookie dough balls, evenly spacing them like you would chocolate chip cookies. I used a medium (2 tablespoon) cookie scoop. The dough is quite wet and the scoop makes it easy to create the cookie dough balls. If you don't have a scoop, use a spoon and wet fingers to form your dough balls.
Bake for approximately 11-15 minutes, or until the cookies are starting to brown lightly around the edges. They will look cooked, if you know what I mean - if there is cracking, the cookies should no longer look wet inside. (See pictures as a guide.)
Let cool at least 10 minutes before eating.
Recipe by This Week for Dinner at https://thisweekfordinner.com/gluten-free-vegan-cashew-butter-cookies/