4 pounds plum tomatoes, cut into 1/2-inch pieces
1 fresh hot chile such as serrano, finely chopped, including seeds
2 tablespoons extra-virgin olive oil
2 large garlic cloves, finely chopped
1/2 cup fresh basil leaves
Special equipment:
Food mill fitted with medium disk
Simmer tomatoes, chile, and oil in a 4-quart heavy saucepan, uncovered, stirring occasionally, until sauce is thickened, about 1 1/2 hours.
During last 10 minutes of cooking, add garlic and stir sauce frequently to prevent scorching.
Remove from heat, then stir in basil, salt and pepper, to taste.
Force through food mill into a large bowl.