Preheat the oven to 350 degrees. Combine all of the ingredients in a food processor, and blend until very smooth. Blending should take 30-60 seconds, you might have to scrape down the sides half way through.
Spray an 8x8 inch glass baking dish with non-stick spray (I used coconut oil spray), and pour the batter in the dish.
Use a spoon to smooth out the top and make sure you have an even layer all the way out to the corners. Then, sprinkle your cinnamon sugar mixture all over the top. Bake at 350 degrees for 30-35 minutes.
Remove from the oven and let it cool for at least 10-15 minutes before cutting into it.
Notes
*you can use coconut sugar for the topping, but it will be a much darker color, and not as granular as cane sugar.