Prime Rib Sliders {with Horseradish-Provolone Sauce & Caramelized Peppers n' Onions}
These Prime Rib Sliders are the perfect way to use up your holiday leftovers! Topped with caramelized pepper, onions and a flavorful horseradish-provolone cheese sauce, these sliders pack some serious punch!
Caramelize the Onions & Peppers: Heat oil and butter in a large skillet over medium heat. When butter is melted, add the onions and peppers. Season with salt, pepper, rosemary and thyme.
Cook, stirring occasionally, until tender and caramelized, about 20 minutes. Remove from heat, taste, adjust for seasoning and set aside until ready to use.
Meanwhile, make the Horseradish Provolone Sauce: Melt the butter in a medium sized saucepan over medium heat. Whisk in the flour to make a roux and cook for 1 minute, until pale golden in color.
Slowly add the milk, stirring continuously, until thickened, 5 minutes. Remove from heat and stir in both cheeses. Season with the salt and pepper. Stir in creamy horseradish. Taste and adjust seasoning according to taste. Cover, and stir occasionally, until ready to use.
Assemble the Sliders: Divide the prime rib among the bottom buns, top each with the caramelized onions and peppers, drizzle on the horseradish provolone sauce and cover with the top bun. Serve with extra sauce on the side for dipping.
Notes
*Any lunch meat can be substituted in place of the prime rib. *Use whatever color peppers you prefer. I used yellow and green because that is what I preferred. *Toast the slider buns if that is your preference. *Serving suggestions: French fries, chips and raw veggies are great dipped in the provolone sauce!