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.

Beat peanut butter and butter until smooth., Add sugar, eggs and vanilla., Beat until creamy., Add flour and salt., Beat until smooth., Bake in 13 x 9-inch pan., Bake about 20 minutes at 350. Sprinkle chocolate chips on top of bars., Bake an additional 5 minutes., Spread the chocolate evenly to make the topping.
peanut butter, butter, sugar, eggs, vanilla, flour, salt, chocolate chips