Cowboy Butter Steak Sliders (Printable)

Tender steak slices with zesty garlic-herb butter on toasted slider buns

# 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:

01 - Rub the steak thoroughly with olive oil, kosher salt, and freshly ground black pepper. Allow the meat to rest at room temperature for 15 minutes to absorb flavors.
02 - In a mixing bowl, combine softened unsalted butter, minced garlic, fresh lemon juice and zest, Dijon mustard, Worcestershire sauce, smoked paprika, cayenne pepper, chopped fresh 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 cast-iron skillet over high heat until smoking hot. Sear the steak for 3-4 minutes per side for medium-rare doneness, adjusting time to your preference. Remove from heat and let rest for 5 minutes before slicing thinly against the grain.
04 - Brush the cut sides of slider buns with olive oil. Place in the hot pan for 1-2 minutes until golden and lightly crisped.
05 - Spread a generous layer of cowboy butter on both halves of each toasted bun. Layer the bottom buns with arugula, sliced steak, and thinly sliced red onion. Cap with bun tops and serve immediately while warm.

# Expert Tips:

01 -
  • The garlic herb butter melts into warm steak creating absolute burger nirvana
  • Everything comes together in under 40 minutes even with the homemade butter
02 -
  • Slicing against the grain is nonnegotiable or your steak will be tough instead of meltingly tender
  • Room temperature butter spreads better so do not refrigerate it after mixing
03 -
  • Let the cowboy butter sit for at least 30 minutes before serving so the flavors meld together
  • If your buns are stale, sprinkle them with water and warm in the oven for 5 minutes