Preheat oven to 350°F (175°C) and grease a 9-inch round cake pan.
Whisk together the flour, baking soda, and salt.
Cream the butter, granulated sugar, and brown sugar until light and fluffy.
Beat in the eggs one at a time.
Mix in the vanilla extract.
Gradually add the dry ingredients until just combined.
Fold in the chocolate chips.
Spread the dough evenly into the prepared cake pan.
Bake for 22–25 minutes until the edges are golden and the center is just set.
Cool completely in the pan.
Decorate with buttercream frosting and sprinkles if desired.
Slice and serve.
