Preheat oven to 350 degrees F. Line a large baking sheet with a Silpat baking mat or parchment paper and set aside.

In a medium bowl, whisk together flour, baking powder, baking soda, and sea salt. Set aside.

 In a small bowl, combine granulated sugar and orange zest. Rub together with your fingers until fragrant.

Using a stand mixer, cream butter and sugars together for about 3 minutes. Add in the eggs and vanilla and mix until combined. With the mixer on low, slowly add in the dry ingredients. Stir in the chocolate chips.

Form the cookie dough into balls, about 2 tablespoons of dough. Place on prepared baking sheet, about 2 inches apart. Sprinkle with sea salt.

Bake cookies for 10-12 minutes or until the edges are slightly golden brown. Remove from oven and let cookies cool on the baking sheet for 2-3 minutes. Sprinkle with a little bit of fresh orange zest, if desired. Transfer to a wire cooling rack and cool completely.