1 c. onion
1/2 c. celery
1 c. ketchup
2/3 c. water
4 tbsp. lemon juice
2 tbsp. brown sugar
2 tbsp. Worcestershire sauce
2 tbsp. vinegar
2 tbsp. mustard
6 to 8 pieces of chicken

Combine all ingredients in a saucepan. Boil on low for 15 minutes. Cook chicken in microwave for 15 minutes. Place on foil on top of the grill. Pour part of sauce over. Continue to add sauce to chicken as it cooks.