Marbled Truffles(The Professional Look Is Easy To Do!)  
["1 (3 oz.) bar white chocolate, broken small", "2/3 c. heavy cream", "1 stick butter or margarine, cut up", "4 c. (24 oz.) semi-sweet chocolate chips", "unsweetened cocoa powder or powdered sugar for decoration"]
["Line an 8-inch pan with foil, letting foil extend above pan on 2 sides.", "Melt white chocolate over very low heat, stirring until smooth.", "Scrape into sandwich size plastic bag.", "Heat cream and butter in a medium saucepan over medium heat until cream simmers and butter melts.", "Reduce to low; add chocolate chips and stir until melted and smooth.", "Pour into prepared pan."]
["white chocolate", "heavy cream", "butter", "semi-sweet chocolate chips", "cocoa"]