- 4 pounds plum tomatoes, seeded and diced
- 1/4 cup olive oil
- 1 1/2 cups leeks, washed and light green parts diced
- 2 cloves garlic, minced
- 2 tablespoons anchovy paste
- 1/4 cup chopped fresh basil, or more to taste
- 2 tablespoons fresh oregano, chopped
- 1/4 teaspoon sugar
- 1/2 teaspoon salt and freshly ground pepper to taste