Even though Sally is always going against what her creator, Dr. Finkelstein, tells her, she has to listen this time.
Try as she might, she is stuck consuming the death soup that she has created.
After only taking a small sip of the soup, it knocks Sally out.
While she may still be alive, Dr. Finkelstein has had enough.
He created her, her can destroy her too.
Dragging Sally back to the same table he built and repaired her on, he is now set on ending her on it too.
Wanting revenge on Jack and Sally for their close relationship, as he created Sally to be his wife, this is the perfect way to achieve said revenge.
If only Sally never made that soup, she would still be alive to witness the wonders of Christmas.