Mom'S Christmas Cookies
["1/2 lb. sweet butter", "1 lb. powdered sugar", "1 tsp. cream of tartar", "1 tsp. baking soda", "6 c. flour", "4 egg yolks", "1 c. sweet cream"]
["Mix together with your hands until right consistency.", "Roll out very thin and cut with cookie cutters."]
["sweet butter", "powdered sugar", "cream of tartar", "baking soda", "flour", "egg yolks", "sweet cream"]