
2 tablespoons white Balsamic vinegar
1 teaspoon Dijon mustard
1 teaspoon salt
1/2 teaspoon sugar
1/2 teaspoon black pepper
1/2 cup extra-virgin olive oil
4 lb mixed heirloom tomatoes, quartered
1 lb yellow cherry tomatoes
1 lb lightly salted mozzarella, cut into 1/4-inch pieces
1 1/2 cups loosely packed small basil leaves
Whisk together vinegar, mustard, salt, sugar, and pepper in a large bowl. Add oil in a slow stream, whisking constantly until dressing is emulsified. Add tomatoes, mozzarella, and basil and toss well. Season with salt and pepper.
Photo Miguel Flores-Vianna