Buttermilk Ranch Dressing with Bibb Lettuce Salad Recipe

• 3 scallions, white and green parts, chopped
• 1/2 cup chopped fresh basil leaves, lightly packed
• 2 tablespoons freshly squeezed lemon juice
• 11/2 tablespoons Dijon mustard
• 1 tablespoon good olive oil
• 2 garlic cloves, chopped
• 2 1/2 teaspoons kosher salt
• 1 teaspoon freshly ground black pepper
• 1 cup good mayonnaise
• 1/2 cup Greek-style yogurt, such as Fage Total
• 1/2 cup buttermilk, shaken
• Salad greens for 6
• 3 small Bibb lettuces, cut in half through the core
• 2 large ripe tomatoes, thickly sliced
• 1 red onion, sliced

Directions