Summer Potato Salad with Green Beans and Tomatoes Recipe from Jessica Seinfeld - Jessica Seinfeld

Ingredients

• 1½ pounds medium red or yellow potatoes (about 5)
• 1 tablespoon plus ¼ teaspoon kosher salt
• 8 ounces string beans (a large handful)
• 1 pint cherry or grape tomatoes
• 1 tablespoon chopped fresh tarragon
• 12 fresh chives
• 2 teaspoons Dijon mustard
• 2 tablespoons white wine vinegar
• ¼ cup extra virgin olive oil
• ¼ teaspoon freshly ground black pepper