In a blender, add the mayonnaise, maple syrup, vinegar, and sugar. Blend on low speed. Slowly add vegetable oil while mixing. Season with salt and pepper. Refrigerate until ready to use.
In a large bowl, add remaining ingredients. Lightly dress the salad, and serve the rest of the dressing on the side.
Adapted from AllRecipes.com Recipe by: Saveur
I couldn't resist adding the cook's comments to this: