Saute the onions for 5 minutes until soft, add anchovies and cook until dissolved, add fennel, tomato, pine nuts, currants, salt and pepper to taste. Bring to boil, and reduce to simmer. Cook for 15 to 20 minutes, add fresh dill. Meanwhile, cook the pasta al dente, drain and add saffron dissolved in 3 tablespoons of water, let stand for 2 minutes to color the pasta, top with sauce and serve with toasted bread crumbs on top.
Recipe courtesy of Salvador Passalacqua