Cut the chicken into pieces. Remove the skin. Cut the thighs into 2 pieces and each breast half into 3 pieces. Add to the slow cooker.
Add the diced tomatoes, carrots and onions to the slow cooker. Cut the potatoes into 2 pieces. Add to the slow cooker. Cut the garlic into slices and add to the slow cooker.
Add the seasonings and chicken stock. Stir to mix everything up. Put the lid on the slow cooker.
Cook on High for 4 hours or 6 hours on Low. Mix together the cornstarch and water. Add the olives. Stir into broth in the slow cooker, cook for 15 minutes on High. Serve with rice
Notes
To make the broth in this extra rich add the backbone from the cut up chicken, and discard after cooking.This stew is great as is or over rice to soak up the wonderful broth.