Rinse chicken; pat dry. Cut chicken into 1-inch pieces. Place chicken in a plastic bag set in a shallow dish. For marinade, in a small bowl stir together soy sauce, honey, vinegar, curry powder, allspice, and hot pepper sauce. Pour over chicken. Close the bag. Marinate chicken in the refrigerator for 4 hours, turning bag occasionally. Remove chicken from marinade, reserving the marinade.

In a saucepan cook the onion in a small amount of boiling water for 3 minutes; drain. Thread the chicken, nectarine or papaya pieces, and partially cooked onion alternately onto eight 6-inch metal skewers.

Grill the kabobs on the rack of an uncovered grill directly over medium-hot coals about 15 minutes or until chicken is tender and no longer pink, turning skewers occasionally. Place reserved marinade in a small saucepan. Bring to boiling. Cook, uncovered, for 1 minute. Pour marinade through a strainer, reserving liquid.

Before serving, brush kabobs with the strained marinade. Serve kabobs with hot cooked couscous or rice. Pass any remaining marinade. Makes 4 servings.