Step 1

Preheat the oven to 350 degrees F.

Step 2

Butter the bottom of a 9 x 13 baking dish with the softened unsalted butter.

Step 3

Without separating the rolls, slice the package of rolls in half (see video).

Step 4

Place the bottom half of the rolls in the baking dish. Top with the 6 slices of the provolone cheese, roast beef, french fried onions, remaining 6 slices of cheese, and the other half of the rolls.

Step 5

In a small bowl, melt the butter in the microwave. Mix in 1 tablespoon of the au jus seasoning mix, Worcestershire sauce, sesame seeds, dried minced garlic, onion powder, and seasoned salt **(I like things salty! If you don't leave this out). Whisk until well combined.

Step 6

Top the rolls evenly with this mixture (you don't need to use all of it, we usually use about 3/4ths) but just make sure all the rolls are entirely coated. If you have leftover put it in the fridge to top steak or bread at another time.

Step 7

Bake the sliders uncovered until the cheese is gooey and the tops of the rolls are golden brown -- about 15-20 minutes.

Step 8

Remove and cut the sliders with a very sharp knife.

Step 9

While the sliders are baking, take the remaining au jus mixture and place in a small saucepan over medium heat. Add 2 cups cold water and whisk. Bring to a boil and then reduce the heat to a simmer to allow it to slightly thicken.

Step 10

Serve with the sandwiches.