Citrus Grilled Chicken Breasts

3 cloves garlic, minced

3 Tbls grainy mustard

1 lime, juiced

1/2 lemon, juiced

1/2 cup brown sugar

6 Tbls olive oil

6 boneless chicken breasts

Combine marinade ingredients in a blender or small food processor and pulse until everything is emulsified and smooth. Marinate chicken in maxture for at least two hours and up to 24 hours. Place chicken on a hot grill which has been brushed with oil. Grill for 5 minutes per side basting often.