You have proof of the delivery if she tries to do a chargeback. I had a similar situation as a caterer and the credit card company denied her.

I started a restaurant business back in 2008 and built it into a multi-million dollar business. I was in it for the wrong reasons and as many folx know, running a food business is not for the faint of heart. Because my husband was my business partner and food was his passion I hung in there until I had enough. When I decided to leave my husband followed. We did not sell, we just shut down with barely a 30 day notice. That was over 7 years ago and I have no regrets.

If you have the runway to do so, let it go. If you can’t sell it see if you can license the process to some of those demanding moms so they can start their own business. They can pay you to train them and then send you monthly royalties.