Speed up prep on this chicken main dish by marinating only 30 minutes. Serve with cabbage-carrot slaw.
Combine first 9 ingredients. Place half of mixture in a zip-top plastic bag; reserve remaining mixture. Add chicken to bag; seal. Chill 2 hours.
Preheat grill to medium-high heat.
Remove chicken from bag. Sprinkle chicken with salt. Place chicken on a grill rack coated with cooking spray; grill 8 minutes on each side or until done. Serve with reserved mustard mixture.
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