4tablespoonsblueberry purée, about ½ cup of fresh blueberries puréed in a blender or food processor
INSTRUCTIONS
In the bowl of a stand mixer, cream the butter over medium speed, until light and fluffy.
Add the cream cheese and whip until combined, about 3 minutes.
Add the powdered sugar, in thirds, mixing on slow speed until combined.
Add the vanilla and blueberry purée and beat on medium speed until smooth.
Transfer to a piping bag fitted with a round tip and swirl frosting onto cooled cupcakes. For fairy cakes, add a layer of frosting between to mini cupcakes stacked face to face then a swirl of frosting on top.