Spaghetti Di Magro

Preparation:

Preparation: Melt half the butter in a saucepan and brown the flour, onion and chopped pine nuts. When everything has browned, add the peeled tomatoes. Salt, pepper. Add the remaining butter and as much water as needed to slightly dilute the sauce. Cook covered for twenty minutes and then add the anchovy fillets making them melt. Boil the spaghetti in abundant salted water, drain and dress them with the hot sauce.