01 - Preheat the oven to 350°F. Line two baking sheets with parchment paper.
02 - In a small bowl, combine the ground flaxseed and water. Let sit for 5 minutes to thicken.
03 - In a large bowl, cream together the vegan butter and 3/4 cup sugar until light and fluffy.
04 - Add the flax egg, pineapple juice, and vanilla extract to the butter mixture. Mix until well combined.
05 - In a separate bowl, whisk together the flour, baking soda, baking powder, salt, and ground ginger.
06 - Gradually add the dry ingredients to the wet ingredients, mixing just until incorporated.
07 - Fold in the chopped dried pineapple.
08 - Scoop tablespoon-sized balls of dough and roll each in the remaining 1/4 cup sugar to coat.
09 - Place dough balls on the prepared baking sheets, leaving at least 2 inches between each cookie.
10 - Gently flatten each ball with your palm.
11 - Bake for 10 to 12 minutes, or until edges are lightly golden.
12 - Allow cookies to cool on the baking sheet for 5 minutes before transferring to a wire rack to cool completely.