Preheat your oven to 350.
In a small saucepan, combine the beef stock, soy sauce, garlic powder and onion powder. Whisk this together and simmer on low until you’re ready to eat.
In a small bowl, whisk together the mayo and pepperoncini juice.
Arrange the split hoagie buns on a baking sheet. Evenly spread the mayo mix on the bottom halves of your hoagie buns. Top with a gigantic mound of roast beef. On the top halves place the Swiss cheese. Roast for 10 minutes. 15 if you want the cheese to brown and bubble.
Top the roast beef with shredded lettuce and a few of the sliced pepperoncini peppers. Place the top halves on top and cut in half crosswise. Serve immediately with the jus! (The dipping sauce)
Makes four sandwiches.
