Cream Cheese Cookies
["1 c. butter", "1 (3 oz.) pkg. cream cheese", "1 c. sugar", "1 tsp. vanilla", "2 1/2 c. flour", "1 egg yolk"]
["Mix ingredients and chill overnight.", "Roll into small balls. Press middle of cookie and put cherry or walnut in hole.", "Bake at 350\u00b0 for 12 to 15 minutes."]
["butter", "cream cheese", "sugar", "vanilla", "flour", "egg yolk"]