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Cowboy Butter Steak Sliders

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Juicy, cheesy, and full of bold flavor, these Cowboy Butter Steak Sliders feature tender seared steak, caramelized onions, melty Havarti, and a zesty garlic-herb cowboy butter — all nestled in toasted slider buns. Perfect for game day, parties, or a satisfying weeknight meal.

Ingredients

1 1/2 lbs boneless steak (ribeye, filet, or sirloin)

Neutral oil, as needed

Kosher salt and freshly cracked black pepper, to taste

3 sweet onions, thinly sliced

9 slider buns

3/4 lb sliced Havarti cheese

1 stick (1/2 cup) unsalted butter, room temperature

4 garlic cloves, minced

1/2 lemon, zested and juiced

1 tbsp Dijon mustard

1 tsp paprika

1/2 tsp cayenne pepper

1/2 tsp dried thyme

1 tsp red pepper flakes

1 tbsp minced chives

2 tbsp minced fresh parsley

Kosher salt and black pepper, to taste

Instructions

  1. In a bowl, mix softened butter with garlic, lemon zest and juice, Dijon mustard, paprika, cayenne, thyme, red pepper flakes, chives, parsley, and salt and pepper until well combined. Set aside or chill briefly to firm up.
  2. Heat oil in a skillet over medium heat. Add sliced onions and a pinch of salt; cook 15–20 minutes, stirring occasionally, until caramelized. Set aside.
  3. Pat steak dry and season with salt and pepper. Heat a cast-iron skillet or grill pan over high heat with a bit of oil. Sear 2–3 minutes per side for medium-rare, or longer if desired. Rest 5–10 minutes, then slice thinly against the grain.
  4. Preheat oven to 375°F (190°C). Slice slider buns in half horizontally. Place the bottoms on a baking dish or sheet pan.
  5. Layer cheese, sliced steak, and caramelized onions on the bun bottoms. Add another layer of cheese, then top with the bun tops.
  6. Melt a few tablespoons of cowboy butter and brush over the tops of the buns.
  7. Cover with foil and bake for 10–12 minutes, until cheese melts. Remove foil and bake uncovered 3–5 more minutes to toast the tops.
  8. Brush with more warm cowboy butter before serving. Slice apart and serve hot with remaining butter for dipping.

Notes

Use provolone or white cheddar instead of Havarti for a sharper flavor.

Grill the steak for a smoky touch.

Add extra cayenne or hot sauce for more spice.

Layer cheese under and over steak to prevent soggy buns.

Leftover cowboy butter can be used on veggies, seafood, or bread.

Nutrition

Find it online: https://justsosavory.com/cowboy-butter-steak-sliders/