Definition: In this task, you have to generate the title of the recipe given its required ingredients and directions.
Input: ingredients:  '1/3 cup butter, soft', '1 (1 lb) box powdered sugar, sifted', '5 -6 tablespoons light cream', '2 teaspoons vanilla', '1/4 teaspoon salt', '3 unsweetened chocolate squares, melted (optional)',<sep> directions: 'Cream butter.', 'Gradually add sugar and light cream, alternately.', 'Add vanilla and salt.', 'Add melted chocolate for chocolate frosting.', 'Refrigerate for a bit before spreading.'

Butter Creme Frosting