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.

Crumb flour, sugar and margarine and set aside 1 cup for topping., Add egg, milk, soda and vanilla to the remaining crumb mixture., Pour into a 9 x 13-inch pan., Sprinkle the 1 cup of reserved crumbs on top of batter., Sprinkle chocolate chips on top next., Bake at 350 for 30 minutes., Test for doneness with toothpick.
flour, brown sugar, margarine, chocolate chips, egg, milk, baking soda, vanilla