In a medium bowl, whisk together the dry ingredients. Set aside.
In the bowl of a stand mixer (or in a large bowl with an electric hand mixer), add the butter, coconut oil, brown sugar, and granulated sugar. Cream together until well-mixed, 2-3 minutes.
Add the eggs and vanilla extract. Beat to fully combine. With the mixer running on low, slowly add the dry ingredients in 3 additions, beating well after each addition.
Stir in chocolate chips. Cover and refrigerate the dough for at least 1 hour and preferably overnight.
When you're ready to bake the cookies, preheat the oven to 350°F. Line two large, rimmed baking sheets with parchment paper or silicone liners. Scoop the dough and shape into heaping tablespoon-sized balls (I use a #40 cookie scoop).
Place the dough balls a couple inches apart on the prepared baking sheets. Bake for 11-13 minutes, until the edges are set and the center is mostly set. Cool the cookies for 3-4 minutes on the pan, then transfer to a wire rack to cool completely. Enjoy!