Cook broccoli until tender, drain thoroughly; put into a buttered 1-1/2 quart casserole. In a saucepan, melt 1/4 cup butter, blend in flour and chicken stock base to make a smooth paste. Gradually add milk and cook, stirring frequently until thick and smooth. Mix into broccoli. Heat water and remaining 1/4 cup butter until butter melts; pour over stuffing mix and hazelnuts and toss. Top broccoli with hazelnut mixture. Bake uncovered at 400 for 20 minutes.
