01 - Preheat oven to 350°F (175°C). Line two baking sheets with parchment paper.
02 - In a medium mixing bowl, whisk together the all-purpose flour, baking soda, baking powder, and salt until well blended.
03 - In a large bowl, cream the softened vegan butter with 1 cup granulated sugar and the light brown sugar using an electric mixer or whisk until the mixture becomes light and fluffy.
04 - Add the pineapple juice, vanilla extract, and peach puree to the creamed mixture. Mix until the mixture is thoroughly combined.
05 - Gradually mix the dry ingredients into the wet mixture, stirring just until the dough comes together without overmixing.
06 - Gently fold the diced pineapple and peach into the cookie dough until evenly distributed.
07 - Scoop tablespoon-sized portions of dough and roll each ball in the reserved 1/4 cup granulated sugar. Arrange the dough balls on the prepared baking sheets, leaving about 2 inches of space between each.
08 - Bake for 11 to 13 minutes or until the edges are lightly golden while the centers remain soft.
09 - Allow cookies to cool on the baking sheet for 5 minutes before transferring to a wire rack to reach room temperature.