Here's one of the first crockpot recipe that I ever tried (while I was in high school, in my mom's brand new crockpot). It's been a favorite ever since.
3 lbs. of chicken pieces, skin removed
1/2 c. soy sauce
1/2 c. tomato juice
1/2 c. oil (can reduce or eliminate if desired)
1/2 c. brown sugar
3 garlic cloves, minced
Mix together all of the ingredients (except chicken) in a bowl. Dip each piece of chicken in the the sauce and then place it in the crockpot. Pour remaining sauce over the chicken. Cook on low for 6-8 hours or on high for 3-4 hours.
Makes about 6 servings.
(The sauce makes a really tasty addition to plain rice served alongside the chicken.)