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.

Melt chocolate chips and margarine together., Beat eggs and powdered sugar together., Add melted mixture to egg mixture., Add vanilla and walnuts., Pour into buttered 9 x 12-inch pan., Set in refrigerator 1 1/2 hours., Cut before it sets too firm.
chocolate chips, butter, eggs, powdered sugar, vanilla, walnuts