Red-Leaf Lettuce and Watercress Salad with Buttermilk Dressing

Ingredients

• 1/2 cup buttermilk
• 1/4 cup mayonnaise
• 1 garlic clove
• minced and mashed to a paste with 1/4 teaspoon salt
• 1/2 teaspoon English-style dry mustard
• 1/4 teaspoon dried tarragon or to taste
• crumbled
• 1 large head red-leaf lettuce
• rinsed
• spun dry
• and torn into pieces
• 1 bunch watercress
• coarse stems discarded and sprigs rinsed and spun dry
• 1/2 small red onion
• sliced thin

Instructions

1. In a small bowl whisk together buttermilk, mayonnaise, garlic paste, mustard, tarragon, and salt and pepper to taste until smooth.
2. In a large bowl toss lettuce, watercress, and onion with dressing.