Caramelize the Onions - Remove dry outer layer of onions, split in half then julienne. Heat a large skillet on medium heat. Add oil, then onions. Allow to caramelize, stirring every two minutes, until the onions are dark, like the color of mahogany. Season with salt and pepper. Allow to cool slightly while you prepare the rest of the ingredients
Preheat oven with pizza stone to 450°. If you do not have a pizza stone, you can use a heavy bottom cookie sheet.
Assemble Flatbread - Lay out flatbread and evenly sprinkle Parmesan and Mozzarella Cheese, going all the way to the edges.
Next, evenly spread caramelized onions over cheese, followed by the figs, bacon and goat cheese.
Bake flatbread in the pre-heated oven for approximately for 6-8 minutes, or until crispy. Remove from oven and place on a cutting board.
Cut flatbread into even pieces and transfer to serving plate. Sprinkle arugula over flatbread then drizzle with aged balsamic before serving.
