How to Make It
Combine first 5 ingredients in a bowl. Rub spice mixture evenly over chicken. Heat a grill pan over medium-high. Coat pan with cooking spray. Add chicken to pan; cook 5 minutes on each side or until done. Remove chicken from pan; let stand 5 minutes. Cut into slices.
Combine peanut butter and next 6 ingredients (through garlic) in a bowl, stirring with a whisk. Spoon peanut butter mixture over chicken; sprinkle with cilantro.