In a bowl, mix together the brown sugar, milk, and butter until smooth.
Add the flour and baking soda, stirring until a soft dough forms.
Fold in as many chocolate chips as you like.
Shape the dough into a ball, place it on a parchment-lined plate, and gently flatten it into a cookie shape.
Microwave for about 1 minute, or until the cookie is set and slightly soft in the center. Let it cool for a minute before enjoying.
