This blueberry buttercream frosting is fluffy and only takes minutes to make! It has a vibrant purple color from pulverized freeze-dried blueberries. There's no need to cook any fresh blueberries down!
Pulse freeze-dried blueberries in a food processor or blender to a fine powder. Set aside.
28 grams freeze dried blueberries
Add room temperature butter and salt to the bowl of a stand mixer or hand mixer. Beat on medium-high speed for 10 minutes, stopping to scrape the sides of the bowl with a rubber spatula after 5 minutes.
227 grams unsalted butter, ½ teaspoon salt
Once the butter is light in color and fluffy, gradually mix in the powdered sugar on low speed, stopping to scrape the sides of the bowl occasionally.
200 grams powdered sugar
Mix in the blueberry powder and vanilla extract on medium-low speed.
1 ½ teaspoon vanilla extract
Add to a piping bag and use to frost cakes, cupcakes, brownies, and more!
Notes
This recipe yields about 2 cups of frosting. This is enough to frost a pan of brownies, 12 cupcakes, a 2 or 3 layer 6-inch cake, or a 2 layer 8-inch cake.If the frosting is too thick, add 1 teaspoon cream or milk at a time. If it's too thin, add 2 tablespoons more powdered sugar at a time. Storage: Store in an airtight container in the refrigerator for up to 1 week. Place a piece of plastic wrap over the frosting to prevent it from crusting.Freezing: Wrap in plastic wrap and seal tightly or place in a freezer bag and freeze for up to 2 months. Thaw overnight in the refrigerator, then whip to restore its creamy consistency.