Preheat the oven to 350ºF.
Cream together the melted butter, granulated sugar, and brown sugar until fluffy.
Mix in the egg and vanilla extract, stirring until well combined.
Slowly add in the flour and baking soda, stirring until well combined.
Fold in the chocolate chips.
Using a cookie scoop, drop balls of the dough onto a non-stick baking sheet and bake for 8-10 minutes.
Leave the cookies on the baking sheet for 10-20 minutes before transferring them to a wire cooling rack. This will help them keep their shape and not fall apart.