Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.
In a medium bowl, whisk together the all-purpose flour, baking soda, baking powder, and salt. Set aside.
In a large mixing bowl, cream the softened vegan butter and packed brown sugar together until light and fluffy, about 3-4 minutes.
Add the almond milk and vanilla extract to the butter-sugar mixture, and mix until well combined.
Gradually add the dry ingredients to the wet mixture, stirring until just combined. Be careful not to overmix.
Using a cookie scoop or tablespoon, portion out the dough and roll it into balls. Roll each ball in the granulated sugar until fully coated.
Place the coated cookie dough balls on the prepared baking sheet, spacing them about 2 inches apart.
Bake in the preheated oven for 10-12 minutes, or until the edges are lightly golden and the centers look slightly underbaked.
Remove from the oven and allow the cookies to cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely.