Preheat the oven to 350 degrees F. Line a large baking sheet with parchment paper.
Add butter to a stand mixer or bowl and beat until smooth.
4 tablespoon unsalted butter
Add egg and vanilla and mix until combined.
1 large egg, ½ teaspoon vanilla extract
Pour in jar of Chocolate Chip Cookie Mix and mix until combined.
1 jar chocolate chip cookie mix
Drop tablespoon sized dollops of dough onto the prepared baking sheet, about 2 inches apart.
Bake for 8-10 minutes or until cookies are golden brown.
Let cool on the pan a few minutes, then transfer to a wire rack to continue cooling. Store in an air-tight container for 1 week.