Tarragon Chicken - Mommy Boler's Crock-Pot Version

I've spent the last few months trying to find healthy recipes for the crock-pot that the three of us will eat. I need it to be gluten-free, dairy-free, preservative-free, sugar-free etc. My husband just wants it to taste good and doesn't want to know how healthy it is. And my daughter, well she is two... who knows why she likes certain things and not others!

This is the only crock-pot recipe that I've cooked more than once and it has quickly become a weekly meal.  It makes enough chicken to leave leftovers for lunch or the next night's dinner.  The chicken just falls apart as you take it out of the crock-pot and melts in your mouth.