To make the Cabernet Vinaigrette, whisk together the vinegar, olive oil, diced shallots and give it a try. Then add salt and pepper to taste.
Butter the cut side of the hamburger buns then toast them on the grill or in the oven. until golden brown. Set aside.
Set grill to medium high and preheat. Make the hamburger into a 1/3 to 1/2 pound patty and then lightly salt and pepper both sides. Grill the hamburger patties to your liking. I like mine a medium and that is about 3-4 minutes per side. Add the slice of cheese at the end of the cooking so it has time to melt. When finished remove from grill and place on bottom slice of bun.
Add all the garnishes next. On top of the patty add the mortadella, genoa salami, lettuce, tomato, pickle. Smear the chopped peppers on the top bun then, with a spoon, drizzle the vinaigrette on both stacks of the sandwich. Drizzle on the top bun and the stack with the lettuce and tomatoes. Flip the top bun onto the top of the sandwich and serve.
Serving Size 1