A big part of Chick-fil-A's massive success is just how much flavor it squeezes into a simple fried chicken sandwich. Normally, an essential part of any fried chicken recipe is the oil it's cooked in. Like KFC, the chain uses a secret blend of spices to give its chicken that special Chick-fil-A taste, and it's also known for using higher-quality chicken and a pressure cooker that helps keep the breasts extra juicy.