for the pungent tomato sauce with capers and vinegar
- 2 tablespoons extra virgin olive oil.
- 1/2 medium onion, finely chopped.
- 1 large garlic clove, minced.
- 1 pound fresh tomatoes, grated, or 1 can chopped tomatoes.
- 1 basil sprig.
- 1 tablespoon capers, rinsed and finely chopped.
- salt.
- freshly ground pepper to taste.