Richmond Frosting
["1/2 c. sugar", "1 1/2 Tbsp. cornstarch", "1 (1 oz.) sq. unsweetened chocolate, grated", "dash of salt", "1/2 c. boiling water", "1 1/2 Tbsp. butter or margarine", "1/2 tsp. vanilla"]
["Mix", "sugar", "and", "cornstarch. Add grated chocolate, salt and water.", "Cook", "until thick.\tAdd butter and vanilla.", "Stir until well mixed.", "While hot spread on cake."]
["sugar", "cornstarch", "unsweetened chocolate", "salt", "boiling water", "butter", "vanilla"]