This bright and vibrant dressing has evolved since it originated in 1920s California. Earlier versions contained tarragon, anchovies, Worcestershire or avocados. Our reimagined classic is full of fresh, tender herbs, lemon and a balanced blend of yogurt and mayonnaise.
Add the yogurt, mayonnaise, basil, dill, parsley, chives, garlic, lemon zest, juice, vinegar, 1 teaspoon kosher salt and 1/4 teaspoon freshly ground black pepper to a blender. Puree until smooth, scraping down the sides with a rubber spatula as needed. Season with salt and pepper to taste. Refrigerate in an airtight container for up to 5 days; stir well before using.