PREPARATION:
- Place chicken in large resealable food storage bag. Combine sherry, soy sauce, sugar, oil, garlic and ginger in small bowl; mix thoroughly to dissolve sugar. Pour into plastic bag with chicken; seal bag and turn to coat thoroughly. Refrigerate 30 minutes or up to 2 hours, turning occasionally. (If using wooden or bamboo skewers, soak skewers in water 30 minutes to prevent burning.)
- Meanwhile, place onions in boiling water for 4 minutes; drain and cool in ice water to stop cooking. Cut off root ends and slip off outer skins; set aside.
- Drain chicken, reserving marinade. Weave chicken accordion-style onto skewers, alternating onions and pineapple with chicken. Brush with reserved marinade; discard remaining marinade.
- Grill on uncovered grill over medium-hot coals 6 to 8 minutes or until chicken is cooked through, turning once.
