01 - Preheat oven to 350°F. Line two baking sheets with parchment paper.
02 - In a small saucepan, combine the blueberries, raspberries, and maple syrup. Cook over medium heat, stirring occasionally, until the berries break down and the mixture thickens, about 5 to 7 minutes. Lightly mash with a fork and set aside to cool.
03 - In a large bowl, whisk together the oats, flour, baking soda, baking powder, cinnamon, and salt until evenly distributed.
04 - In a separate bowl, whisk the melted coconut oil and brown sugar until smooth. Add the applesauce and vanilla extract, mixing until fully combined.
05 - Pour the wet mixture into the dry ingredients and stir until just combined. Fold in the raisins.
06 - Drop spoonfuls of dough, about 2 tablespoons each, onto the prepared baking sheets, leaving at least 2 inches of space between each cookie.
07 - Dollop 1 to 2 teaspoons of the cooled berry mixture onto each cookie. Use a toothpick or skewer to gently swirl the berry puree into the dough in a decorative pattern.
08 - Bake for 12 to 14 minutes, until the cookies are set and the edges are lightly golden.
09 - Allow the cookies to cool on the baking sheets for 5 minutes, then transfer to a wire rack to cool completely before serving or storing.