Boil the water with the salt. When the water is boiling add the spaghetti and cook al dente.
While the pasta is cooking, warm the olive oil in a skillet on medium heat.
Add the anchovy paste and mash in to a paste. Add the garlic cloves, stir in the crumbs and cook until browned and dark brown. Discard the garlic cloves.
Drain the pasta, toss in a bowl with the bread crumbs and anchovies mixture, sprinkle with the chopped parsley and if desired some chili flakes. Enjoy with a cold beer and good friends!