Combine the endive, watercress, radishes, pears, and Gorgonzola in a large bowl. Sprinkle the walnuts on top, cover, and refrigerate until ready to serve.
Combine the honey, shallots, garlic, and mustard in a small bowl. Whisk to blend. Add the white wine and cider vinegars and whisk to incorporate. Gradually whisk in the walnut oil, followed by the olive oil. Season with the salt and pepper.
When ready to serve, drizzle the vinaigrette over the salad and toss to coat evenly. Serve immediately.
Makes 6 to 8 servings