Ingredients
For The Caramelized Onions:
- 1 tablespoon olive oil
- 3 tablespoons butter
- 2 medium yellow onions thinly sliced
- 2 sprigs of thyme whole
- ¼ teaspoon salt
- ¼ teaspoon ground black pepper
To Assemble The Sliders:
- 12 Hawaiian sweet rolls
- 2 tablespoons dijon mustard
- ¼ cup mayonnaise
- 12 slices provolone cheese
- 1 pound thin sliced deli roast beef
- 2 tablespoons butter + more for buttering the pan
- 2 tablespoons dried onion soup mix
- 1 packet au jus made according to package instructions
- parsley for garnish
Instructions
- In a skillet, heat olive oil and melt butter and add onions and thyme. Saute (keep stirring) until caramelized. This takes 15-20 minutes. Remove the thyme sprigs, season with salt and pepper, and remove from heat.
- Lightly butter a 7×11” pan with softened butter, and preheat the oven to 350°F/180°C.
- Slice the rolls lengthwise leaving them intact, and place the bottom half in the buttered pan. Spread the mayo and mustard
- Then add a layer of cheese (use half of the cheese), all of the roast beef, and the caramelized onions. Layer the remaining cheese, and cover with the top buns over the cheese.
- Brush the buns with melted butter, and sprinkle with dried onion mix. Bake in the oven covered with foil for 15 minutes, then uncover and bake for 5 more minutes or until the tops are golden brown.
- Prepare the au jus gravy as you wait for the sliders to bake, and serve on the side. Garnish with parsley.

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