Crisp Winter Lettuces with Warm Sweet-and-Sharp Dressing: 2000s Recipes + Menus : gourmet.com

Ingredients

• 12 cups mixed salad greens such as romaine, watercress, and Bibb and/or Boston
• 1 large bunch arugula (optional), coarse stems discarded
• 6 scallions, thinly sliced diagonally
• 2 tablespoons finely chopped chives
• 9 bacon slices (1/2 pound)
• 1 1/2 cups cider vinegar
• 1/4 cup granulated sugar
• 1/4 cup packed light brown sugar
• 1 1/2 teaspoons kosher salt