Step 1

Place all ingredients in the bowl of a stand mixer fitted with the whisk attachment, the heavy cream, cold mascarpone, sifted confectioner's sugar and vanilla.

Step 2

Beat at high speed for about 5 minutes until you have a thick, firm cream.

Step 3

Be careful not to overbeat the cream or it will be grainy. If it is, add very cold heavy cream in very small amounts while letting the mixer run to smooth the frosting.

Step 4

Use the frosting immediately in your desserts.