Thaw, marinade, and slow cook

I’m newly single but my last partner made such good food I’m inspired to keep up but I’m not sure how to start. I have a pack of frozen boneless chicken tenderloins all frozen and stuck together and I was wanting to marinade it in like a balsamic vinegar type marinade and slow cook it. I plan on using it in wraps and salads. What steps do I need to take to do this or is it even possible?