01 - Preheat oven to 350°F. Line two baking sheets with parchment paper.
02 - In a medium bowl, whisk together all-purpose flour, baking powder, baking soda, and sea salt. Set aside.
03 - In a large bowl, whisk granulated sugar and melted coconut oil until smooth. Add pineapple juice, applesauce, and vanilla extract, mixing until thoroughly combined.
04 - Gradually incorporate the dry ingredient mixture into the wet mixture, stirring gently until just combined.
05 - Fold in diced pineapple and mixed berries, ensuring the dough is not overmixed.
06 - Scoop heaping tablespoons of dough and roll into balls. Roll each ball in granulated sugar and arrange on prepared baking sheets, spacing about 2 inches apart.
07 - Gently flatten each dough ball with your palm or the bottom of a glass.
08 - Bake for 11 to 13 minutes or until the cookie edges are lightly golden.
09 - Cool cookies on the baking sheets for 5 minutes, then transfer to a wire rack to cool completely.