Mix softened butter, white sugar, and brown sugar together in a large bowl until smooth and creamy.

Add the egg and vanilla extract to the mixture, beating thoroughly until combined.

Stir in the flour, baking soda, and salt gently until a soft dough forms.

Fold the chocolate chips into the dough using a spatula until evenly distributed.

Scoop dough balls onto a baking sheet and bake at 375°F (190°C) for 10 to 12 minutes until golden brown.