Gather all your ingredients. Ensure the unsalted butter is at room temperature for easier mixing.
In a large mixing bowl, beat the room temperature butter with an electric mixer on medium speed until creamy and smooth, about 1-2 minutes.
Mix in the Nutella and vanilla extract, beating on medium speed until fully combined with no lumps.
Gradually add the powdered sugar, 1 cup at a time, mixing on low speed to avoid a sugar cloud. Once incorporated, increase the speed to medium and beat until fluffy.
If the frosting is too thick, add the heavy whipping cream one tablespoon at a time until the desired consistency is achieved.
Add a pinch of sea salt to taste to enhance the chocolate-hazelnut flavor.
Mix on high speed for about 30 seconds for extra fluffiness.
Your Fluffy Nutella Buttercream Frosting is now ready! Use it to frost your favorite baked goods.
