Spritz Cookies
["2 c. butter", "2 c. sugar", "4 egg yolks", "2 tsp. vanilla", "5 c. flour", "1/2 tsp. salt", "1/2 tsp. baking powder"]
["Cream butter and sugar until fluffy.", "Add unbeaten egg yolks one at a time, beating thoroughly each time.", "Add vanilla, flour, salt and baking powder.", "Put through a cookie press.", "Bake at 375\u00b0 for 10 to 12 minutes.", "Makes about 12 dozen cookies."]
["butter", "sugar", "egg yolks", "vanilla", "flour", "salt", "baking powder"]