In 1-gallon resealable food-storage plastic bag, place all ingredients except chicken, sour cream and paprika. Seal bag; shake to blend seasonings. Add chicken; seal bag and shake until chicken is coated with seasonings. Refrigerate at least 1 hour to marinate but no longer than 24 hours.
Heat gas or charcoal grill. Place chicken in grill basket (grill "wok"). Place basket on grill over medium heat. Cover grill; cook 20 to 25 minutes, shaking basket to turn chicken after 10 minutes, until juice of chicken is clear when thickest part is cut to bone (180°F).
Serve chicken with sour cream sprinkled with paprika.