01 -
In the bowl of a stand mixer fitted with a paddle attachment, beat the unsalted butter for approximately 5 minutes until light, pale, and fluffy.
02 -
Gradually add powdered sugar in two batches, mixing on low speed after each addition until fully combined with the butter.
03 -
Add blueberry reduction, vanilla extract, and salt to the mixture. Beat on low speed until the frosting becomes smooth.
04 -
Slowly drizzle in heavy cream. Increase mixer speed to medium and whip for 3 to 5 minutes until the buttercream is smooth and creamy.