Make a flax egg and set aside.
Cream together vegan butter, brown and white sugar, vanilla (if you don't have vanilla paste, use 2 tsp of vanilla extract) and almond milk.
Add in flax egg until mix until well combined.
Add dry ingredients (flour, cornstarch, baking soda and salt) to the bowl until a soft dough is formed.
Gently stir in chocolate chips until well distributed.
Dough can be baked immediately, but for best results, refrigerate overnight or freeze for 1 hour.
Preheat oven to 350° F.
After dough has rested, bake for 13-15 min or until edges are crispy.