Poppy Seed Cookies
["1 c. butter", "1/2 c. sugar", "1/4 tsp. salt", "2 egg yolks", "2 c. sifted flour", "3 Tbsp. poppy seed", "semi-sweet chocolate bits", "1 tsp. vanilla"]
["Cream butter,", "sugar", "and", "salt until light and fluffy. Add vanilla and", "egg", "yolks one at a time.", "Mix well.", "Stir in flour and", "mix.", "Mix", "in poppy seed.", "Shape into balls.", "Place on lightly", "greased cookie sheet about 1 inch apart.", "Press in center of each", "cookie", "with thumb.", "Bake at 375\u00b0 for 10 to 12 minutes. Remove", "from cookie sheet and cool.", "Press in center again.", "When cool, fill center with melted chocolate bits."]
["butter", "sugar", "salt", "egg yolks", "flour", "poppy seed", "semi-sweet chocolate bits", "vanilla"]