Cowboy Butter Steak Sliders (Print View)

Juicy steak sliders with zesty homemade cowboy butter on toasted buns—perfect for parties and gatherings.

# What You Need:

→ Steak & Marinade

01 - 1.5 lbs flank steak or ribeye, trimmed
02 - 2 tbsp olive oil
03 - 1 tsp kosher salt
04 - 1/2 tsp freshly ground black pepper

→ Cowboy Butter

05 - 1/2 cup unsalted butter, softened
06 - 2 garlic cloves, minced
07 - 1 tbsp fresh lemon juice
08 - 1 tsp Dijon mustard
09 - 1 tsp Worcestershire sauce
10 - 1/2 tsp smoked paprika
11 - 1/4 tsp cayenne pepper
12 - 2 tbsp fresh parsley, finely chopped
13 - 1 tbsp fresh chives, finely chopped
14 - 1 tbsp fresh dill, finely chopped
15 - 1/4 tsp crushed red pepper flakes
16 - 1/2 tsp kosher salt
17 - Zest of 1/2 lemon

→ Slider Assembly

18 - 8 slider buns
19 - 1 cup arugula or baby spinach
20 - 1 small red onion, thinly sliced
21 - 1-2 tbsp olive oil for toasting buns

# How to Make It:

01 - Rub the steak thoroughly with olive oil, kosher salt, and black pepper. Allow to rest at room temperature for 15 minutes to ensure even cooking.
02 - In a mixing bowl, combine softened butter, minced garlic, lemon juice, lemon zest, Dijon mustard, Worcestershire sauce, smoked paprika, cayenne pepper, chopped parsley, chives, dill, red pepper flakes, and salt. Mix until completely smooth and creamy. Set aside at room temperature.
03 - Heat a grill pan or heavy skillet over high heat until smoking hot. Sear the steak for 3 to 4 minutes per side for medium-rare doneness, adjusting time for preferred doneness. Remove from heat and let rest for 5 minutes, then slice thinly against the grain.
04 - Brush cut sides of slider buns with olive oil. Place in a preheated pan and toast until golden brown and slightly crispy, about 1 to 2 minutes.
05 - Spread a generous layer of cowboy butter on both the top and bottom bun halves. Layer with arugula, sliced steak, and thin red onion rings. Crown with bun tops and serve immediately while warm.

# Expert Tips:

01 -
  • The cowboy butter is basically liquid gold that you will want to put on everything forever
  • These disappear faster than you can say fourth quarter
02 -
  • Slicing against the grain is absolutely mandatory or your steak will be tough and chewy instead of tender and perfect
  • The butter needs to be truly soft or you will end up with chunky herbs instead of a smooth spreadable mixture
03 -
  • Let the cowboy butter come to room temperature before serving for maximum spreadability
  • A slice of sharp cheddar melted onto the warm steak before assembling takes these over the top