Preheat the oven to 350F, then spray a muffin tin with non-stick spray. Set aside
In a medium bowl, cream the butter and both sugars together.
Add in the vanilla and egg and mix until everything is smooth and well incorporated.
Add in the dry ingredients over the wet ingredient mixture, and mix just until combined.
Fold in the chocolate chips, then using a medium cookie scoop, scoop our the cookie dough in the greased muffin tins.
Bake for 9-10 minutes. Don't worry if they look underdone or gooey in the middle. That's what we want, they will continue to bake even after you pull them out of the oven to cool.
Cool on the cookie sheet for 5 minutes then transfer to a cooling rack.
Notes
To measure out the flour, use the spoon and sweet method. Spoon the flour into the measuring cup and sweep the excess off with a flat knife or spatula. This will give you a more accurate measurement next to weighings.
You can save these cookies in an airtight container for up to 5 days. They will probably be gone by then, but this is here for whoever needs it!