01 - Preheat oven to 350°F. Line two baking sheets with parchment paper.
02 - In a medium bowl, whisk together flour, baking soda, baking powder, and salt until thoroughly blended.
03 - In a large bowl, beat vegan butter and 3/4 cup sugar until light and fluffy, approximately 2-3 minutes.
04 - Mix in mango puree, plant-based milk, and vanilla extract until the mixture is smooth and well combined.
05 - Gradually add dry ingredients to the wet mixture, stirring until a soft, cohesive dough forms.
06 - Scoop tablespoon-sized portions and roll each into a ball. Roll each ball in the remaining 1/4 cup sugar to coat evenly.
07 - Place dough balls 2 inches apart on prepared baking sheets. Gently flatten each ball with your fingers or the bottom of a glass.
08 - Bake for 10-12 minutes or until edges are just set and centers appear slightly underbaked for optimal chewiness.
09 - Let cookies cool on the baking sheet for 5 minutes, then transfer to a wire rack to cool completely.