Sauté all ingredients over medium-low heat until the sugar melts and then caramelizes, making sure to stir the walnuts as you go to keep from burning. Set aside.
Sherry Vinaigrette & Salad
For the vinaigrette: Render the bacon until crispy, remove bacon from fat and reserve for later. To make the vinaigrette, add vinegar, honey, thyme, mustard, and lemon juice to a mixing bowl. Whisk together, slowly adding the bacon fat and olive oil until well incorporated. Season with salt and pepper to taste.
For the salad: Remove all bitter green parts from the Frisee. Julienne the pears and toss them with lettuce, bacon, and enough of the dressing to coat. Garnish with the candied walnuts and serve.