Preheat the oven to 350 degrees F.
Mix the dry ingredients and set aside.
Cream the butter and sugar along with flaxed egg and vanilla. Add the orange zest and beat well.
Add the flour in three to four batches and beat well until thoroughly mixed. Scrape the sides.
Fold in the chocolate chips.
Scoop with a cookie scopper. Add a couple of reserved chocolate chips.
Bake for 9-10 minutes. For a crunchier cookie, bake for a minute longer. Remove from the oven, cool for a few minutes,. Transfer to cooling rack and cool completely.
Store in an airtight container.