TOMATO SAUCE WITH PANCETTA AND CHILI PEPPER

Steps:

• Put the oil, butter and onion in a saucepan and turn on the heat to medium. Saute the onion until it becomes colored a pale gold, then add the pancetta. Cook for about 1 minute stirring once or twice. Add the tomatoes, the chili pepper and salt, and cook in the uncovered pot at a steady, gentle simmer for 25 minutes. Taste and correct for salt and hot pepper. Toss the pasta with the sauce, then add both cheeses, and toss thoroughly again.