Food was cold and dessert was raw. Manager refused...

Food was cold and dessert was raw. Manager refused for the server to take the peach cobbler off our tab when she offered as it had taken nearly the whole dessert for two of us to recognize the dough was raw. We stepped in and said we would pay for it, our notifying them was just an fyi... But it was awkward to witness the manager question his employee's decision and our truth in front of us.