Ensalada de Tomatoes

Ingredients

• 1 1/2 pounds ripe plum tomatoes, sliced 1/4inch thick
• 3 tablespoons fruity Spanish olive oil
• 1 teaspoon salt
• 1/2 teaspoon freshly ground pepper
• 1/4 teaspoon sugar (optional)
• 1 1/2 tablespoons white wine vinegar
• 1/2 bunch basil, leaves only, cut into chiffonade