Food and Recipes Desserts Cakes Lemon-Orange Buttercream Frosting Be the first to rate & review! The addition of lemon and orange zest and freshly squeezed juice takes the flavor of this buttercream frosting over the top. Spread Lemon-Orange Buttercream Frosting over your favorite cake, cupcakes, or cookies--you won't be disappointed. By Southern Living Editors Updated on January 6, 2022 Print Rate It Share Share Tweet Pin Email Photo: Jennifer Davick Active Time: 10 mins Total Time: 10 mins Yield: 6 cups Ingredients 1 cup butter, softened 3 tablespoons orange zest 1 tablespoon lemon zest 1 (32-oz.) package powdered sugar 3 tablespoons fresh lemon juice 5 tablespoons fresh orange juice 1 tablespoon additional fresh orange juice Directions Beat butter, orange zest, and lemon zest at medium speed with an electric mixer 1 to 2 minutes or until creamy; gradually add powdered sugar alternately with lemon juice and 5 Tbsp. fresh orange juice, beating at low speed until blended after each addition. Add up to 1 Tbsp. additional fresh orange juice, 1 tsp. at a time, until desired consistency is reached. Rate it Print