The word tikka means chunks, pieces or bits. Chicken tikka masala is a delicious north indian dish in which pre-marinated pieces of chicken are grilled and then added to a thick creamy gravy. The result is a lovely smokey flavor. You can cook and freeze this dish quite well or marinate the chicken ahead of time and also make (do not add the cream) and freeze the sauce beforehand. When you are ready to serve, just grill the chicken and heat through the gravy, add the cream and mix the chicken and gravy, then serve. Serve chicken tikka masala with hot naan (leavened tandoor-baked flatbread).