They say the best way to judge an establishment is by their mastery of the classics. So a good bakery needs to be able to make a good chocolate chip cookie.
Preheat oven to 375°F. Line 2 large baking sheets with parchment.
Cream butter and sugars together.
Add egg and vanilla and mix thoroughly.
Measure dry ingredients together.
Add to butter and egg mixture and mix until just combined.
Fold chocolate chips into the batter.
Form dough into 6 balls, well-spaced between 2 parchment-lined sheet trays. Press some extra chocolate chips into the tops of the cookies.
Bake for 9-12 minutes, removing when the cookies are just browning around the edge and just set on top for to maintain that gooey center. For crisper cookies, bake an additional 3-5 minutes.
Let cool on baking sheet for 10 minutes before removing and allowing to cool on a cooling rack for another 20 minutes.