In a large bowl combine the carrot, cucumber, daikon, scallions, vinegar, fish sauce, and salt and pepper. Stir to combine. Then (ideally) refrigerate for 1 to 2 hours to let the vegetables pickle slightly. Stir in the mint and cilantro.
In a small bowl combine the mayonnaise with the hot chili sauce, and the lime juice. Season with a bit of salt.
When you are ready to assemble and serve the sandwiches, halve the baguette lengthwise. Place ¼ of the pork on the bottom of the baguette, cutting the pork to fit the baguette. Layer on some of the slaw, then drape a pieces of prosciutto over the slaw. Top with ¼ of the arugula. Swipe the top of the baguette with the spicy mayo and place the bread on top.
Notes
Note:
The cilantro is, as it always is, optional, since there are lovers (me and Charlie) and haters (Gary and Jack) in every crowd. Play around with the herbs, too – chervil is great, so is basil.