Chocolate Frosting
["2 (1 oz.) sq. unsweetened chocolate", "1/2 c. butter, softened", "1 (16 oz.) pkg. powdered sugar, sifted", "1 egg", "1 Tbsp. whipping cream", "2 Tbsp. vanilla extract", "1 1/2 tsp. lemon juice"]
["Place chocolate in top of a double boiler; bring water to a boil.", "Reduce heat to low; cook until chocolate melts.", "Set aside to cool slightly.", "Cream butter with electric mixer.", "Add chocolate and remaining ingredients, beating until smooth."]
["unsweetened chocolate", "butter", "powdered sugar", "egg", "whipping cream", "vanilla extract", "lemon juice"]