Preheat your oven to 350°F (175°C).
In a large mixing bowl, cream together the softened butter, granulated sugar, and brown sugar until light and fluffy.
Add the egg and vanilla extract, mixing until combined.
In a separate bowl, whisk together the flour, baking soda, and salt.
Gradually combine the dry ingredients into the wet mixture, mixing just until no flour is visible.
Fold in the chocolate chips until evenly distributed.
Scoop tablespoon-sized dough onto a lined baking sheet and shape into hearts using your hands or a cookie cutter.
Bake for 10-12 minutes, or until the edges are golden brown and the center is set.
Allow cookies to cool on the baking sheet for 5 minutes before transferring to a wire rack to cool completely.