Mix and then add cocoa powder. Mix until combined.
Pour mixture into a bowl and fold in cashew flour until combined.
Using a spatula, spread about 1/2 inch thick onto a teflex lined sheet (or a parchment lined pan if using an oven) and dehydrate overnight OR in an oven.
Bake at 200 degrees Fahrenheit for 1 hour.
Flip over the brownies using a large spatula then dehydrate 5 more hours, OR in an oven for 1 hour.
Remove from dehydrator or oven and cool completely.
Pour ganache over brownies, then place in the refrigerator for 30 minutes to set up.
Cut brownies into squares.
Ganache Topping
Blend ingredients for ganache in a food processor.