Step 1Rinse chicken in cold water. Drain and blot with paper towels. Score chicken pieces on both sides with sharp knife, making a few shallow cuts on each piece.
Step 2Combine onion, garlic, ginger, soy sauce, sugar, malt syrup, oil and pepper in large bowl. Rub marinade all over chicken. Cover and refrigerate 3 hours or preferably overnight.
Step 3Grill chicken over medium-high heat until cooked through, about 30 to 40 minutes, turning occasionally.