Classic Vegan Chocolate Chip Cookies

0 Preheat oven to 350 degrees F. Line a large baking sheet with a silicone baking mat or parchment paper and set aside.
1 Make your flax egg by combining the ground flax seed with water. Set aside for 5 minutes to thicken.
2 In a medium bowl, whisk together flour, baking powder, baking soda, and sea salt. Set aside.
3 Using a stand mixer, cream butter and sugars together for about 3 minutes with the paddle attachment. I usually do it at a speed 4 in my Kitchen Aid. Add in the flax egg and vanilla and beat until combined. 
7 With the mixer on low, slowly add in the dry ingredients. Add the chocolate chips and pulse the dough a couple of times until the chocolate chips are fully incorporated. You can also stir by hand with a spatula if you want.
4 Form the cookie dough into balls, about 3 tablespoons of dough (I used a XL scoop). Place on prepared baking sheet, about 2 inches apart. I like them big, but you can make them smaller.
5 Bake cookies for 10-12 minutes or until the edges are slightly golden brown. DO NOT overbake. It will continue to cook and firm up as it cools. Remove from oven and let cookies cool on the baking sheet for 15 minutes. Sprinkle flaky sea salt on top. Transfer to a wire cooling rack and cool completely.
6 Enjoy! Store in an airtight container on the counter for up to 3 days.