
Ingredients Needed for French Onion Beef Panini
- 1 package of Aunt Millie’s Mini Sub Buns
- 4 tablespoons unsalted butter, divided
- 2 large yellow onions, finely sliced
- 2 pounds of shaved beef
- 2 tablespoons beef broth, divided
- 1 tablespoon Worcestershire sauce, divided
- 1 packet of Au Jus gravy mix
- 12-16 ounces Gruyere or Swiss cheese, shredded
- Salt and Pepper to taste
Directions for French Onion Beef Panini
- Preheat griddle or panini press to medium low heat.
- Prepare Au Jus according to packet instructions.
- Melt 2 tablespoons of the butter in a skillet over medium heat. Add in the onions and reduce the heat to medium low. Cook, stirring occasionally, until lightly caramelized,about 25-30 minutes.
- In a large bowl, mix the shaved beef with the beef broth and Worcestershire sauce. Season with salt and pepper.
- Add the beef to the skillet full of onions Increase heat to medium-high and
brown the beef. Once browned, drain off excess grease. - Evenly distribute the beef and onion mixture over the bottom the Mini Sub Buns. Top with the gruyere cheese. Cover with the top buns.
- In a griddle or panini press, over medium low heat, melt remaining butter. Add sandwiches, two at a time, and cook until bread is golden brown and cheese has completely melted. Repeat with remaining two sandwiches and serve immediately.
- Serve and dip your French Onion Beef Panini in Au Jus and enjoy!