This breaded pork tenderloin sandwich is beloved in the Hoosier state for good reason- it’s a huge, crispy, juicy piece of pork adorned with condiments.
Cut pork crosswise into 2 equal pieces. Place each piece flat and cut horizontally almost all of the way through, stopping about an inch from the other side. Open pieces like a book and place between plastic wrap. Pound to a ¼ inch thick with a rolling pin or mallet.
Whisk the buttermilk, egg, garlic, salt, pepper, and cayenne in a medium sized bowl. Add the pork, cover, and refrigerate overnight or up to 4 hours.
Using a food processor, pulse the Saltines into coarse crumbs and transfer to a dish. In a separate dish, mix flour, salt, and pepper.
Remove each piece of pork from the marinade, allowing excess to drip. Dredge both sides in flour, dip back into marinade, and then coat with the cracker crumbs.
Set pork aside while you heat your oil. Heat ¼ inch to ½ inch of oil in heavy bottomed skillet over medium high heat until oil reaches 360 degrees F.
Fry pork in batches until golden brown and cooked through, about 3 minutes per side. Drain on paper towels.
Spread mayo and mustard on both buns. Add pork and top with lettuce, tomato, and pickles.