Given the task definition and input, reply with output. 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.

______,Shape chicken mixture into 6 patties using about 1/3 cup mixture for each patty. Place crumbs and remaining milk in seperate shallow bowls.Roll patties in crumbs, then milk, then crumbs again.,In a large skillet cook patties in remaining butter for 3 minutes on each side or until golden brown. Serve on rolls with lettuce and tomato, if desired.,Uncooked patties may be frozen for up to 3 months. To prepare frozen patties, cook in butter for 5-6 minutes on each side or until golden brown.

In a large saucepan, saute onion and celery in 3 tablespoons butter until tender. Combine flour and 1 cup milk. Gradually add to pan. Bring to a boil, cook and stir for 2 minutes or until thickened. Add parsley, seasonings and chicken. Remove from heat, chill until completely cooled.