Preheat the oven to 375° F. Prepare an 8x8 baking pan with parchment paper. Set aside.
Place all ingredients except the berries into a food processor or blender and blend until smooth.
Transfer to a large mixing bowl and stir in the raspberries and blackberries. Pour the batter into the prepared baking pan and spread into an even layer.
Bake uncovered 35-40 minutes or until slightly brown and firm. Remove the pan from the oven and cool in the pan 10 minutes before slicing into 9 bars.
Video
Notes
Don’t bake the bars for too long. Stop once they turn golden brown on top so they don’t completely dry out.
Use a high speed blender instead of a food processor for a smoother batter.
Taste your bars to ensure they are sweet enough and have the right amount of flavor for you before baked. Once they’re baked, you can’t adjust, so always taste before you bake!