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Cowboy Butter Steak Sliders Recipe
Ash Tyrrell

Cowboy Butter Steak Sliders Recipe

There’s something about these cowboy butter steak sliders that makes me want to make them again and again. The first time I tried them, I couldn’t believe how juicy the steak turned out with that rich buttery sauce brushed over the buns. I love how every bite has tender steak, melty cheese, and sweet caramelized onions packed into soft brioche rolls.
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Total Time 55 minutes
Servings: 4
Ingredients Method Notes

Ingredients
  

  • 2 pounds beef sirloin steak – Sirloin stays tender and juicy while still being affordable. Ribeye also works beautifully for extra richness.
  • 2 teaspoons kosher salt – Helps season the steak evenly and brings out the natural beef flavor.
  • 2 teaspoons black pepper – Adds a bold slightly smoky kick to the meat.
  • 3 tablespoons unsalted butter – Used for cooking the onions and steak while adding rich flavor.
  • 1 large yellow onion thinly sliced – Yellow onions caramelize best because of their natural sweetness.
  • 1 medium jalapeño pepper sliced – Adds a little heat and freshness. Remove seeds for a milder taste.
  • 1 cup freshly shredded sharp cheddar cheese – Freshly grated cheese melts smoother and tastes better than pre-shredded cheese.
  • 12 brioche slider rolls – Brioche buns stay soft and buttery while holding the juicy filling perfectly.
  • ½ cup cowboy butter melted – The signature buttery sauce loaded with garlic, herbs, lemon, and spices.
  • 1 teaspoon garlic powder – Gives extra savory flavor to the steak.
  • 1 teaspoon smoked paprika – Adds subtle smoky depth and color.
  • 1 tablespoon chopped parsley – Brightens the rich buttery flavor.
  • 1 teaspoon Dijon mustard – Gives the cowboy butter a slight tangy flavor.

Method
 

  1. Start by seasoning the steak generously with salt, pepper, garlic powder, and smoked paprika. Let the steak rest at room temperature for about 20–30 minutes before cooking so it cooks evenly. This simple step makes the steak much more tender and flavorful.
  2. Melt butter in a skillet over medium-low heat and add the sliced onions. Stir occasionally while they slowly cook until soft, golden, and sweet. Proper caramelization takes patience, but the deep flavor is completely worth it.
  3. Increase the skillet heat to medium-high and cook the steak for about 4–5 minutes per side depending on thickness. Spoon the melted butter over the steak while cooking for extra richness. Let the steak rest for a few minutes before slicing it thinly.
  4. Use a sharp knife to cut the steak against the grain into thin slices. Cutting against the grain helps break down the muscle fibers, making each bite more tender. Thin slices also fit perfectly inside the slider buns.
  5. Place the bottom halves of the brioche buns into a greased baking dish. Brush melted cowboy butter over the buns, then layer the steak, jalapeños, caramelized onions, and shredded cheese evenly. Add the top buns and brush more cowboy butter on top.
  6. Cover the dish with foil and bake at 350°F for about 15 minutes until the cheese melts completely. Remove the foil and bake for another few minutes until the tops become lightly golden. Brush extra cowboy butter over the warm sliders before serving.

Notes

  • I always let the steak rest before slicing because it keeps the juices inside instead of running out.
  • I like shredding my cheese fresh because it melts creamier and tastes richer.
  • I usually toast the buns lightly before assembling so they don’t get soggy.
  • I found that slow-cooking the onions gives the best sweet caramelized flavor.
  • I sometimes add a little extra cowboy butter right before serving because it makes the sliders incredibly juicy.
  • I prefer using brioche rolls since they stay soft while still holding all the filling.