Combine in a jar:
1 chopped sweet pepper
1 chopped, skinned and seeded tomato
1 chopped onion
2 chopped garlic cloves
2 chopped bay leaves
2 tablespoons chopped parsley
Separately mix:
1/2 cup oil
1 cup vinegar
1 teaspoon salt
1 teaspoon cracked black peppercorns
1 teaspoon oregano
Combine both mixtures and mix thoroughly. Cover and leave for 12 hours before using. It will keep for several weeks in the refrigerator.