- Prep Time: 8 mins
- Total Time: 8 mins
- Category: Dessert
- 1 pound Stirling unsalted butter, at room temperature
- 5 1/2 cups icing sugar, sifted
- 5 Tablespoons sparkling wine (Prosecco)
- In a mixing bowl, with the whisk attachment; whisk all ingredients together until light and fluffy, about 3 minutes.