Steam the broccoli florets over a pan of boiling water for 4–5 minutes. Chill under cold water and set aside.
In a heavy pan, gently heat the mascarpone, dolcelatte, crème fraîche, vinegar, and wine. Add the broccoli florets.
Cook the pasta in boiling salted water until it is just tender, drain well, return to the pan, and add the hot sauce. Sprinkle with capers, olives, and hazelnuts, and toss well. Adjust the seasoning and serve.