01 - Preheat the oven to 350°F. Line two baking sheets with parchment paper.
02 - In a small bowl, combine ground flaxseed and water. Stir and let rest for 5 minutes to thicken.
03 - In a large mixing bowl, whisk together the melted coconut oil, granulated sugar, brown sugar, plant milk, vanilla extract, and flax egg until smooth and creamy.
04 - In a separate bowl, sift together the flour, baking powder, baking soda, and salt.
05 - Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Do not overmix.
06 - Fold in the diced papaya gently.
07 - Scoop tablespoon-sized portions of dough onto the prepared baking sheets, spacing them about 2 inches apart.
08 - Bake for 11–13 minutes, or until the edges are lightly golden but the centers are still soft.
09 - Allow cookies to cool on the baking sheet for 5 minutes, then transfer to a wire rack to cool completely.