Given the task definition and input, reply with output. In this task, you have to identify the named entities (NER) which are the ingredients required given its directions. Named entities are the names of the items without their quantity.

Combine all ingredients into large mixing bowl; stir until mixed thoroughly., Grease a Pyrex dish, 13 x 9-inch., Pour mixture into greased Pyrex dish; pat into dish., Chill until firm. Sprinkle top with brown sugar or top with icing or chocolate Cool Whip., Cut into desired amounts.
peanut butter, oleo, graham cracker crumbs, vanilla, confectioners sugar