01 - Preheat the oven to 350°F. Line two baking sheets with parchment paper.
02 - In a medium bowl, whisk together the all-purpose flour, baking soda, baking powder, and salt until evenly distributed.
03 - In a large bowl, beat the softened vegan butter with cane sugar and brown sugar until the mixture is light and fluffy.
04 - Incorporate the non-dairy milk, vanilla extract, and peppermint extract into the creamed mixture, blending thoroughly.
05 - Gradually add the dry ingredients to the wet mixture, stirring gently until just combined to avoid overmixing.
06 - Gently fold in the white chocolate chips (if using) and half of the crushed peppermint candies evenly throughout the dough.
07 - Scoop tablespoon-sized dough portions onto the prepared baking sheets, spacing them approximately 2 inches apart.
08 - Press each cookie ball lightly to flatten slightly and sprinkle the remaining crushed peppermint candies on top.
09 - Bake in the preheated oven for 10 to 12 minutes, until the cookie edges begin to turn golden brown.
10 - Allow cookies to rest on the baking sheets for 5 minutes before transferring them to a wire rack to cool completely.