For the salad: Cook the bacon in a large skillet over medium heat until crisp, about 10 minutes. Transfer to paper towels to drain.
Arrange the watercress, blue cheese, eggs, avocados, tomatoes, lettuce and bacon in rows on a platter. Season with salt and pepper.
For the dressing: In a small bowl, using a fork, mix the egg yolks into the mustard to make a paste. Whisk in the maple syrup, vinegar and Worcestershire sauce. While whisking, slowly drizzle in the oil to form a thick dressing. Add 1 tablespoon (15 ml) water to loosen it up if necessary. Whisk in the chives. Season with salt and pepper.
To serve, drizzle the dressing over the salad.
Recipe courtesy of Chuck Hughes