Preheat oven to 350° & line an 8x8 pan with parchment paper
Add all ingredients except topping into a food processor.
Mix until smooth, scrap sides as needed.
Pour batter into pan and spread evenly.
In a small dish mix sugar & cinnamon. Sprinkle on top of batter.
Bake 22-25 minutes.
Let cool at least 20 minutes before slicing.