Food and Recipes Desserts Cakes Chocolate Truffle Filling You'll find this ultra-decadent filling in our recipe for Rudolph's Chocolate Truffle Cake. By Southern Living Test Kitchen Southern Living Test Kitchen The Southern Living Test Kitchen has been publishing recipes since 1970, four years after the first issue of Southern Living Magazine appeared on newsstands. The Southern Living Test Kitchen team includes a team of professionals with deep expertise in recipe development, from pastry chefs and grilling experts to nutritionists and dietitians. Together, the team tests and retests, produces, styles, and photographs thousands of recipes each year in the state-of-the-art test kitchen facility located in Birmingham, Alabama. Southern Living's editorial guidelines Updated on July 20, 2022 Print Share Share Tweet Pin Email Photo: Lee Harrelson; Styling: Mindi Shapiro Yield: Makes 1 3/4 cups Ingredients 4 (1-ounce) semisweet chocolate squares 6 tablespoons butter 1/4 to 1/2 cup whipping cream, divided 2 1/2 cups powdered sugar, sifted Directions Microwave semisweet chocolate squares and 6 tablespoons butter in a large microwave-safe bowl at HIGH 1 1/2 to 2 minutes or until melted and smooth, stirring every 30 seconds. Stir in 1/4 cup whipping cream. Stir in 2 1/2 cups powdered sugar, adding remaining 1/4 cup whipping cream, 1 tablespoon at a time, if necessary, until mixture is smooth and creamy. Let mixture cool completely. Print