Bring the heavy cream to a simmer in a heavy-bottomed saucepan over medium-high heat and stir in the chocolate-hazelnut spread. Add a pinch salt and continue whisking until the sauce is creamy. Remove from the heat and reserve.
Cook the chocolate pasta in a large pot of boiling water, 3-5 minutes. Immediately remove the pasta from the water and toss gently with the sauce and a little of the pasta cooking water to help with the consistency.
Mound the pasta and sauce on dessert plates and garnish with the fresh berries, a dollop of sour cream, white chocolate shavings and skinless toasted chopped hazelnuts, to garnish