Cowboy Butter Steak Bites
Sirloin cut into chunks, seared hard in a screaming hot cast iron skillet, then finished in cowboy butter built directly in the pan — butter, garlic, Dijon, lemon, fresh herbs, red pepper flakes. Twenty minutes. One pan. Tastes like a steakhouse appetizer that became dinner.
Ingredients
Meat & Protein
- 1.5 lbs sirloin steak cut into 1 to 1.5-inch chunks, patted dry — ribeye works if budget allows
Produce
- 4 garlic cloves minced
- 2 tbsp fresh parsley roughly chopped
- 1 lemon juiced — about 2 tablespoons
Dairy
- 4 tbsp unsalted butter divided — 1 tbsp for searing, 3 tbsp for the cowboy butter finish
Pantry & Canned Goods
- 1 tbsp olive oil
- 1 tsp Dijon mustard
- 1 tsp Worcestershire sauce
Seasonings & Spices
- 1 tsp kosher salt
- 0.5 tsp black pepper
- 0.5 tsp smoked paprika
- 0.25 tsp crushed red pepper flakes
Instructions
- Pat the steak chunks completely dry with paper towels — do not skip this. Season generously with kosher salt, black pepper, and smoked paprika on all sides. Let the steak sit at room temperature for 5 minutes while the pan heats.
- Heat a large cast iron skillet over high heat for 2 full minutes until smoking. Add olive oil and 1 tablespoon of butter. The butter will sizzle and brown immediately — that's correct. Working in batches if needed, add the steak bites in a single layer. Do not touch them for 2 minutes. Sear undisturbed until a deep brown crust forms on the bottom.
- Flip each piece and sear for another 1 to 2 minutes on the second side. The steak should be medium-rare to medium at this point — slightly pink in the center. Transfer to a plate and tent loosely with foil. Do not wipe the pan.
- Reduce heat to medium. Add the remaining 3 tablespoons of butter to the same pan. As it melts, add the minced garlic and cook for 30 seconds, stirring constantly. Add the Dijon mustard, Worcestershire sauce, lemon juice, smoked paprika, and crushed red pepper flakes. Stir everything together into a sauce, scraping up the browned steak bits from the bottom of the pan.
- Return the steak bites and any accumulated juices to the pan. Toss to coat in the cowboy butter sauce. Cook for 30 seconds more — just enough to warm the steak back through without cooking it further. Remove from heat. Add fresh parsley and serve immediately, spooning extra butter sauce from the pan over the top.
Notes
The pan must be smoking hot before the steak goes in. A properly preheated cast iron skillet sears steak in 2 minutes per side. A pan that isn't hot enough steams the steak and produces gray, chewy pieces instead of a browned crust. Two full minutes on high heat before anything goes in.
Work in batches if your skillet isn't large enough to fit the steak in a single layer without pieces touching. Crowding the pan drops the temperature and produces steam instead of sear. Two batches with a proper sear is better than one batch with no sear.
Sirloin is the right call for weeknights — it has enough marbling for flavor and holds up to high heat without becoming tough. Ribeye is richer if you want to spend more. Avoid lean cuts like eye of round — they become chewy under this method.
Serve over mashed potatoes, rice, or with crusty sourdough to soak up the cowboy butter sauce. The sauce is the best part — don't waste it.
Internal links: Cowboy Butter Shrimp Pasta uses the same flavor profile — link between them. Also links to One-Pan Garlic Butter Steak Bites and Air Fryer Steak and Potatoes in the steak cluster.
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