Dice onion and garlic. Remove ... the can of tomato puree. Fill the empty can ... Add oregano and vinegar or wine. Bring sauce to a boil, stirring continuously. ... pasta, cooked al denté.
Remove skins from sausage and ... and simmer the sauce from 30 minutes to 2 ... the cans of tomato to add during the last ... the wine and/or vinegar during the last 15 minutes ... reaches the desired consistency.
TO MAKE THE SAUCE: Place the stock and ... constantly. Add the vinegar and cook over moderate heat ... pine nuts and tomato paste, mix well, and season ... some of the sauce.
Cut each zucchini crosswise into ... boil. For the sauce, heat 3 tablespoons stock ... minutes. Stir in vinegar and cook for 2 minutes ... immediately. Makes 8 servings.