Heirloom tomatoes are relatively new to Australia, and due to the growing influx of farmers' markets gracing Sydney's streets, Jane and Jeremy can now access them readily in summer months. This is their take on a classic panzanella salad.
Preheat grill to medium-high heat.
Arrange bread on grill rack; grill 1 minute on each side or until well marked. Cool slightly; tear into chunks. Combine bread and tomatoes in a large bowl.
Combine oil, vinegar, and sugar in a small bowl, stirring until sugar dissolves. Drizzle over bread mixture; sprinkle with salt and pepper. Toss gently to coat. Sprinkle with basil leaves.