
Sweet and creamy mascarpone cheese whipped frosting is flavored with real blackberry juice or pureed blackberries! It has a gorgeous natural light purple hue.
In the bowl of a stand mixer fitted with the whisk attachment, combine the mascarpone and heavy cream, and mix until well combined, about 30 seconds. Scrape the sides of the bowl as needed. Cold ingredients will whip better together.
Add blackberry juice or puree, vanilla extract and powdered sugar to the mixture and turn it on high speed until well combined and the cream starts to whip (thicken), about 1-2 minutes. You should see a change in consistency from smooth and creamy to a texture that is very sturdy in structure & hold its shape well. Stop mixing when soft to medium peaks form if spooning the frosting. Whip a little longer until medium to stiff peaks if you plan on piping the frosting.
*Substitutions: Mascarpone cheese can be substituted 1:1 for cream cheese, but you will want to increase the amount of powdered sugar to at least ½ cup!
**Blackberry juice: fresh blackberries can be juiced by hand, with a juicer, or by cooking 6 oz of blackberries on the stove and straining the seeds out using a fine mesh strainer.
**Blackberry puree: can be made quickly by placing fresh or frozen berries in a food processor or high powered blender. Blackberry jam can be used as well. Optional: strain the seeds out using a fine mesh strainer for a smooth texture.