Combine all ingredients together in a medium bowl and stir until well combined.
Spray a 9 inch cake pan with oil spray and line with parchment paper.
Pour batter into the prepared pan and bake for 40-45 minutes, until lightly browned on top.
*For icing you can buy a vanilla frosting from simple mills or miss jones (as pictured) or just do the citrus icing: 1 cup powdered sugar + 3 tbsp lemon or blood orange juice