A vinegar and mustard Carolina-style barbecue sauce moistens shredded grilled chicken for sliders. Serve with Easy Summertime Sweet Pickles for piquant crunch.
Mix ketchup, vinegar, onion, sugar and Marinade Mix in medium saucepan until well blended. Bring to boil. Reduce heat to low; simmer 10 minutes or until onion is tender. Set aside. Brush chicken lightly with oil.
Grill chicken over medium heat 6 to 8 minutes per side or until cooked through, turning occasionally.
Shred chicken using 2 forks. Add to saucepan; toss to coat well. Spoon shredded chicken mixture on rolls. Serve with Easy Summertime Sweet Pickles, if desired.