Add the brown sugar, granulated sugar, vanilla extract, and apple cider vinegar to a mixing bowl. Mix until the sugars have almost dissolved.
After the butter and sugar and combined add the flax meal water mixture and vanilla extract. Mix until well combined.
Add the baking powder, baking soda, salt, cocoa powder, and flour to a bowl. Stir to combine.
Add the dry ingredient to the butter mixture and mix to fully combine.
Add the vegan chocolate chips. Then fold them in using a spatula to keep the chocolate chips from breaking up too much.
Bake the cookies for 8-10 minutes at 350 degrees F or until the sides have browned slightly.