Chocolate Cream Roll
["5 eggs, beaten separately", "1/2 c. sugar", "2 Tbsp. cocoa", "1 tsp. vanilla", "1 c. whipped cream", "2 Tbsp. powdered sugar", "chocolate sauce (optional)"]
["Beat yolks with 1/2 cup sugar and cocoa, fold in stiffly beaten egg whites.", "Line well-greased biscuit pan with wax paper, brush with butter or oil.", "Pour mixture on this.", "Bake at 325\u00b0 for 20 to 25 minutes.", "Turn out on a towel; roll as a jelly roll.", "When cold, unroll and spread with whipped cream sweetened with powdered sugar. Roll, slice and serve with hot chocolate sauce."]
["eggs", "sugar", "cocoa", "vanilla", "whipped cream", "powdered sugar", "chocolate sauce"]