Cowboy Butter Steak Bites

Name: Cowboy Butter Steak Bites with Mashed Potatoes
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Yield: 2 servings
Cuisine: American
Ingredients: 1.5 lbs sirloin steak, cut into 1-inch cubes; 2 tbsp olive oil, divided; 1 tsp garlic powder; 1 tsp salt; 1 tsp black pepper; 1 tbsp butter; 1 medium yellow onion, thinly sliced; 1 tsp granulated sugar; 1/2 cup unsalted butter (1 stick); 2 shallots, minced; 1 tbsp lemon juice; 4 cloves garlic, minced; 1 tsp paprika; 1/2 tsp cayenne pepper; 1 tsp red pepper flakes; 1/2 tsp salt; 2 tbsp fresh parsley, chopped; 1 tsp Dijon mustard; Mashed potatoes, for serving; Fresh parsley, for garnish; Red pepper flakes, for garnish

Cowboy Butter Steak Bites are tender sirloin cubes seared until golden, then dressed in a rich garlic and shallot butter sauce and served over creamy mashed potatoes with caramelized onions. This is a restaurant-quality comfort dish that comes together in one pan.

🌍American 🏷️Cowboy butter 🏷️Steak bites 🏷️Sirloin steak 🏷️Garlic butter sauce Comfort food

🏷️

🏷️Dinner

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TikTok

Total

30 min

Servings

2

Difficulty

Easy

Est. Cost

$37–$61

Recipe Source

View original recipe

From TikTok

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TikTok

Ingredients

1.5 lbs sirloin steak, cut into 1-inch cubes
2 tbsp olive oil, divided
1 tsp garlic powder
1 tsp salt
1 tsp black pepper
1 tbsp butter
1 medium yellow onion, thinly sliced
1 tsp granulated sugar
1/2 cup unsalted butter (1 stick)
2 shallots, minced
1 tbsp lemon juice
4 cloves garlic, minced
1 tsp paprika
1/2 tsp cayenne pepper
1 tsp red pepper flakes
1/2 tsp salt
2 tbsp fresh parsley, chopped
1 tsp Dijon mustard
Mashed potatoes, for serving
Fresh parsley, for garnishoptional
Red pepper flakes, for garnishoptional

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Instructions

1
In a bowl, combine steak cubes with 1 tbsp olive oil, garlic powder, salt, and black pepper. Mix well to coat.
2
In a large skillet over medium heat, add 1 tbsp olive oil and 1 tbsp butter. Once melted, add the sliced onions and sugar. Cook, stirring occasionally, until deeply caramelized, about 10-15 minutes. Remove from the pan and set aside.
3
Wipe the skillet clean and add more olive oil over high heat. Add the steak bites in a single layer, being careful not to overcrowd the pan. Sear on all sides until browned. Remove from the pan and set aside.
4
Reduce the heat to medium and add the stick of unsalted butter to the same skillet.
5
Once the butter is melted, add the minced shallots and cook until softened, about 1-2 minutes. Add lemon juice and minced garlic, and cook for another minute until fragrant.
6
Stir in the paprika, cayenne pepper, red pepper flakes, and salt.
7
Add the chopped fresh parsley and Dijon mustard, stirring to combine.
8
Return the seared steak bites to the skillet and toss to coat them completely in the cowboy butter sauce.
9
Serve the steak bites and sauce over a bed of creamy mashed potatoes, topped with the caramelized onions. Garnish with additional fresh parsley and red pepper flakes if desired.

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Tips & Notes

Pro tips

Pat steak cubes dry and season generously with salt and pepper before searing to maximize browning and flavor development.
Sear in two batches with divided olive oil to avoid crowding the pan; overcrowding drops pan temperature and prevents a golden crust.
Caramelize onions separately over medium heat with a pinch of sugar to develop deep sweetness—don't rush this step.
Add the cowboy butter sauce at the very end off-heat to prevent the butter from separating and to preserve its rich, glossy texture.

Substitutions

Sirloin → Ribeye or New York strip (more marbling and fat; reduces cook time slightly)
Unsalted butter → Salted butter (reduce added salt by 1/4 tsp to avoid over-salting)
Yellow onion → Red onion or sweet onion (mild sweetness; red onion adds slight color)
Garlic powder → Minced fresh garlic (1.5 tsp fresh garlic; add to shallots during butter infusion)

Storage & make-ahead

Store cooled steak bites and sauce separately in airtight containers for up to 3 days. Reheat gently in a skillet over low heat; reheat mashed potatoes and caramelized onions separately to maintain texture.

Common Questions

What cut of steak works best for steak bites?

Sirloin is ideal for this recipe because it's tender, flavorful, and cuts cleanly into even cubes. Ribeye or New York strip also work well if you prefer more marbling.

How do I get a good sear on steak bites?

Pat the steak cubes completely dry before cooking, use high heat, don't overcrowd the pan, and let each side develop a golden crust for 2-3 minutes before flipping.

Can I make the cowboy butter sauce ahead?

Yes, prepare the butter mixture with minced shallots and garlic up to 24 hours ahead. Store in an airtight container in the fridge and warm gently before serving.

What's the best way to caramelize the onions?

Slice thin and cook over medium heat in 1 tbsp butter with a pinch of sugar for 25-30 minutes, stirring occasionally, until golden brown and soft.

Can I double this recipe?

Yes, double all ingredients and sear the steak in batches to maintain heat and achieve proper browning. Increase cowboy butter and onion quantities proportionally.