Preheat the oven to 350 degrees.
Mix the dry ingredients (flour, oats, baking soda, arrowroot, salt, cinnamon).
Mix in the applesauce and vanilla.
Spread the batter onto a parchment paper-lined baking sheet (it should be ~½ inch thick).
Top with the berries.
Bake 11-15 minutes.
Cool, cut, and enjoy!
