Preheat the oven to 350 F. Line a 12 cup muffin pan with paper liners. In a large bowl, combine butter with sugar until fluffy. Add in egg and vanilla extract and mix until smooth.
Add in the baking mix and mix until it is fully combined. Fold in the chocolate chips. Evenly divide the cookie dough between the muffin cups. Bake for 12-15 minutes.