Make your coconut whipped cream by mixing chilled coconut cream in a large mixing bowl. Set whipped cream in a large freezer bag and freeze until completely chilled. To prepare the batter, rinse the mixing bowl.
Add apple cider vinegar and baking soda to almond milk in a liquid measuring cup. Set aside.
Combine water and flaxseed meal in a large mixing bowl to make flax eggs. While your other ingredients are being prepared, let them rest for five minutes.
Add the oil, maple syrup and coconut sugar, and whisk to combine.
Next add vanilla, salt, and applesauce, and whisk to combine. Stir in almond milk mixture and continue whisking until well combined. about half a minute.
In the final step, whisk together the cocoa powder, baking powder, oat flour, almond meal, and gluten-free flour, making sure there are no large clumps left.
Preheat the oven to 350 degrees Fahrenheit, and chill and thicken the batter in the refrigerator for 20 minutes. Spray non-stick cooking spray on two large baking sheets.
As soon as the oven is preheated, spoon out a heaping tablespoon of batter onto the prepared baking sheets, leaving at least one inch of space for spreading.
In a baking pan, bake the cookies for 10-14 minutes, or until the edges appear dry. Allow cooling completely on the cooling racks after removing from the oven and resting for 5 minutes on a baking sheet.
You will need to repeat this step until all of the batters are used up.
Using the coconut whipped cream bag, cut off a small corner and pipe coconut whipped cream generously onto the underside of half the cake. Add another cake that is similarly shaped and sized, and gently press down.
Cover loosely with plastic wrap after arranging on large serving plates or cooled baking sheets. These can be enjoyed right away.
You can store leftovers in the refrigerator for 3-4 days if they are covered with plastic wrap.