Recipes and Cooking Fudgy Frosting With a carton of sour cream in the mix, this fudgy chocolate frosting has just a bit of tang and perfectly compliments a sour cream cake. But it's great on any cake you'd like to pair with chocolate frosting. By BHG Test Kitchen BHG Test Kitchen The Better Homes & Gardens Test Kitchen has been in continuous operation for nearly 100 years, developing and testing practical, reliable recipes that readers can enjoy at home. The Test Kitchen team includes culinary specialists, food stylists, registered and licensed nutritionists, and other experts with Bachelor of Science degrees in food science, food and nutrition, or culinary arts. Together, the team tests more than 2,500 recipes, produces more than 2,500 food images, and creates more than 1,000 food videos each year in the state-of-the-art test kitchen. Learn about BHG's Editorial Process Published on May 24, 2021 Print Rate It Share Share Tweet Pin Email Photo: Blaine Moats Ingredients 1 12 ounce package semisweet chocolate pieces ½ cup butter 1 8 ounce carton sour cream 4 ½ cup sifted powdered sugar (1 lb.) Directions In large pan over low heat melt and stir semisweet chocolate pieces and butter. Cool 10 minutes. Stir in sour cream. Stir in powdered sugar; stir until smooth. Makes 4 cups. Rate it Print