Marinated Tomatoes Teruel

Ingredients

• 3 very large ripe tomatoes, cut into 1/2-inch-thick slices
• 1/3 cup olive oil
• 1/4 cup Sherry wine vinegar or red wine vinegar
• 1/4 cup finely chopped onion
• 2 tablespoons drained capers
• 2 tablespoons minced fresh parsley
• 1 large garlic clove, minced
• 1 teaspoon salt
• 1 teaspoon dried basil, crumbled
• 1/4 teaspoon ground pepper
• Fresh parsley (optional)