In this task, you will be presented with the directions of a recipe separated by "," and have to fill in the "___" which is a step that is missing from the recipe.

______,Place steaks in nonmetal dish or plastic bag.,Add steak sauce mixture; turn to coat both sides of steaks.,Cover.,Refrigerate 1 hour to marinate, turning occasionally.,Remove steaks from marinade; discard marinade.,Preheat grill to medium-high heat.,Grill steaks 5 to 7 min.,on each side or until cooked through.
Mix steak sauce, mustard and pepper flakes.