Whisk together first 7 ingredients in a small bowl. Sprinkle chicken thighs evenly with salt; place in a lightly greased 3-1/2- or 4-quart slow cooker. Poor sauce mixture over chicken. Cover and cook on HIGH setting 1 hour. Reduce heat to LOW setting, and cook 5 hours or until chicken is tender.
Remove chicken to a serving platter, using a slotted spoon. Whisk together water and cornstarch in a small bowl; add to sauce in slow cooker. Increase heat to HIGH setting; whisk constantly 4 minutes or until sauce begins to thicken. Spoon sauce evenly over chicken. When I made this I served over rice.