Preheat oven to 400°F. Line a 8X8 baking pan with parchment paper or use a silicone pan mold.
Mix all the dry ingredients together in a large bowl. Add the rest of the wet ingredients & stir until there are no lumps. Pour batter into baking pan.
Bake for 25-30 minutes on middle rack or until toothpick comes out clean. Let cool & then cut in to 9 squares and serve.
Notes
Keep leftovers covered in the fridge for up to a week.