The secret to this unbelievably delicious dish is a grilled chicken marinade made with olive oil, garlic, lemon zest, and lemon juice. The meat does need to marinate for at least four hours. But it can go for up to 24 hours. Remember to take care of this step ahead of time. I confess that several times I have only marinated the poultry for 30 minutes, but it still was delicious. However, I recommend a minimum of four hours for the maximum flavor!