For 1 chicken, mix

1 2/3 tbsp. butter
2 tbsp. oil
2 tbsp. olive oil
2 tbsp. white wine (white wine vinegar works)
1 tbsp. Worcestershire
1 tbsp. Tabasco
Juice of 1/2 lemon
Salt and pepper

I grill the chicken for 45 minutes to 1 hour on the grill turning and basting every 5 minutes or so (it flames so watch the burning). I usually cook it 20 minutes on high (on a gas grill), 20 minutes on medium and 20 minutes on low.