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["1 (8 oz.) container sour cream", "1 envelope dry onion soup mix", "2 pkg. Pepperidge Farm party rolls (20 in pkg.)", "1 jar hamburger pickles", "12 oz. shaved corned beef, chopped fine"]
["Mix corned beef, sour cream and onion soup mix.", "Spread mix on bottom of roll.", "Top with slice of pickle.", "Put top on roll.", "Put rolls on cookie sheet and cover with foil.", "Bake at 350\u00b0 for 20 minutes.", "Makes 40 appetizers that taste just like White Castle burgers."]
["sour cream", "onion soup", "party rolls", "pickles", "beef"]