Boil the potatoes until tender. Transfer to a bowl and mash the potatoes. Season with salt and pepper. Let cool slightly before stirring in the mayonnaise.
Stir in the remaining ingredients and mix well.
Place a slice of prosciutto cotto on your work surface in a horizontal position. Place approximately 2-3 heaping tbsps. of the potato mixture on the lower end of the prosciutto cotto and roll tightly around the filling.
Place seam side down on a serving platter. Continue with the remaining ingredients.
Serve chilled.
Notes
Add herbs of your choice to brighten up the flavors of this dish.
Try using mortadella instead of the prosciutto cotto rolled around the potato mixture.
These rolls are best enjoyed the day they are prepared otherwise the prosciutto cotto tends to dry out.
If desired, the potato mixture can be prepared the day ahead and assembled the day of serving.
The prepared rolls can be served drizzled with a balsamic vinegar reduction.
Cut the rolls in half for finger food sized antipasto.