- Set oven to 350F.
- In a large bowl, mix together the dry ingredients.
- Add the wet ingredients to a food processor or high powered blender. Blend until smooth. Empty the contents into the bowl with the dry ingredients and mix together using a spatula. Once it’s thoroughly mixed, set aside. Fold in optional nuts and seeds.
- Line a square 8×8 (or 9×9) baking pan with parchment paper, then pour in the batter.
- Bake for at least 25 minutes or until the top is golden brown and you can pierce it with a fork and it comes out clean.