Tomato and Sweet Onion Salad

INGREDIENTS

• 1 ripe mixed tomatoes, cut into wedges
• 1 Sun Gold cherry tomatoes, halved
• 1/2 small sweet onion (such as Vidalia or Maui), thinly sliced
• 1/2 torn fresh basil leaves
• 1/4 1/2-inch pieces fresh chives
• 2 extra-virgin olive oil
• 1 white wine vinegar
• 1/2 sugar
• Kosher salt, freshly ground pepper