-In the bowl of a mixer (or using a hand-held), add the cold cream and begin whipping; once thickened slightly, sprinkle in the sugar and finish whipping just until stiff peaks form; set aside for a moment.
-In medium-large bowl, add 2 cups of fudge pudding (reserving the remaining pudding) and begin adding the whipped cream to it in several increments, gently folding in to keep a fluffy and light consistency, as this is the “chocolate mousse” part of the dessert; once all whipped cream is incorporated, set aside and prepare glasses.
To Assemble (for 6 servings in 6 ounce glasses):
-Begin by adding equal amounts of the crushed hazelnuts to the bottom of each glass (about 3 tablespoons), drop a spoon full of Nutella, next a layer of Nutella whip (about 3 tablespoons), and next a layer of the fudge pudding (about 3 tablespoons); repeat this process again for each glass, with another layering of crushed hazelnuts, then the whip, finally finishing with a final sprinkling of crushed hazelnuts and a decorative dollop of fudge pudding; refrigerate until ready to serve, or serve immediately.