Slow-Cooked White Chili

1 pound boneless chicken breast
1 medium onion, chopped
1/2 tsp. minced garlic
1 1/2 cups water
1 15-ounce can great northern (or use cannellini ) beans, rinsed and drained
1 15-ounce can garbanzo beans (chickpeas), rinsed and drained
1 11-ounce can whole kernel white corn, drained
1 4-ounce can chopped green chilies
1 to 2 tsp. chicken bouillon granules
1 tsp. ground cumin
Fat-free half & half to taste

Place all of the ingredients except the half & half in a slow cooker. Cover and cook on Low for 7 to 8 hours. Just before serving, remove the chicken from the slow cooker and cube or shred it. Return the chicken to the slow cooker and stir in fat-free half & half to your taste.