Cowboy Butter Steak Sliders Recipe
Last summer, Emma came home from a sleepover absolutely raving about these “amazing little steak sandwiches” her friend’s mom had made for their barbecue. She couldn’t stop talking about them – how the steak was perfectly seasoned, how there was this incredible butter sauce, and how they were the perfect size so you could eat three without feeling guilty.
“Mom, you have to learn how to make these,” she kept saying, describing them in vivid detail while I tried to piece together what she was talking about. All I kept hearing was “butter” and “steak” and “so good,” which honestly sounded like my kind of recipe already.
I started researching and discovered this whole world of cowboy butter – this amazing herb and garlic-loaded compound butter that’s apparently been making steaks incredible for years. Who knew? I’d been missing out on this magical combination that transforms ordinary steak into something restaurant-worthy.
The first time I made these sliders, Emma walked into the kitchen just as I was brushing that golden cowboy butter over the perfectly cooked steak. “That’s it!” she squealed. “That’s exactly what they looked like!” When she took that first bite, her face just lit up, and she declared mine were even better than the ones she’d had at the sleepover.
COOK TIME | TOTAL TIME |
---|---|
10 minutes | 40 minutes |
What Are Cowboy Butter Steak Sliders?
These amazing little sandwiches are made with tender ribeye or sirloin steak that gets cooked perfectly and topped with the most incredible flavored butter. The cowboy butter is what makes these sliders so special – it’s made with soft butter mixed with minced garlic, fresh lemon juice, dijon mustard, and tons of delicious herbs like parsley and chives. We add some paprika and cayenne for a little kick that makes your taste buds wake up. The steak gets seasoned with just salt and pepper, then we pile it on soft slider buns with sweet caramelized onions and creamy havarti cheese. That cowboy butter melts right into the warm steak and creates the most amazing flavors. The combination of the rich, meaty steak with all those herbs and spices in the butter is absolutely perfect. These sliders are great for feeding a crowd because everyone can grab one or two, and they’re so much more interesting than regular burgers. The sweet onions add a nice balance to all the savory flavors, and that havarti cheese just melts beautifully over everything.
You’ll Love These Steak Sliders
These steak sliders are going to become your new favorite thing to make! First, you get real steak instead of ground beef, which makes them feel so much more special and delicious. The cowboy butter is packed with garlic, fresh herbs, and spices that turn ordinary steak into something amazing. The sweet onions get all caramelized and add the perfect balance to the rich meat. That creamy havarti cheese melts beautifully and makes every bite so satisfying. They’re the perfect size for parties because people can easily grab one and keep socializing. Even though they taste fancy, they’re actually pretty simple to make at home. The flavored butter does most of the work, and you can prepare it ahead of time. Your family and friends will think you’re some kind of cooking genius when you serve these. They’re comfort food that feels special enough for any occasion.
Key Ingredients in Cowboy Butter Steak Sliders

For the Perfect Steak:
- Ribeye or sirloin steak – about 1½ pounds of quality beef that gives you that rich, tender flavor
- Kosher salt and black pepper – simple seasonings that let the meat shine through
- Neutral oil – for getting that beautiful sear on your steak
For the Amazing Cowboy Butter:
- Unsalted butter – the creamy base that holds all those wonderful flavors together
- Fresh garlic cloves – minced up for that bold, savory punch we all love
- Fresh lemon juice and zest – adds brightness that cuts through all the richness
- Dijon mustard – gives a subtle tangy kick that makes everything pop
- Paprika and cayenne – brings just the right amount of warmth and color
- Fresh parsley and chives – these herbs make everything taste so fresh and vibrant
- Dried thyme and red pepper flakes – adds extra layers of flavor and a little heat
For Assembly:
- Sweet onions – caramelized until they’re golden and perfectly sweet
- Havarti cheese – melts like a dream and adds that creamy richness
- Slider buns – the perfect vehicle for all this deliciousness
How to Make Cowboy Butter Steak Sliders:
Prepare the Steak Start by trimming any excess fat and silver skin from your steaks if needed. Rub them all over with a little neutral oil, then season generously on all sides with kosher salt and freshly cracked black pepper. For thicker steaks, use more seasoning to make sure the flavor gets through. Wrap the seasoned steaks in plastic wrap and refrigerate for a few hours – this lets all those flavors really soak into the meat.
Make the Cowboy Butter In a small saucepan over low heat, melt the stick of butter while whisking constantly. Add the lemon juice, lemon zest, minced garlic, dijon mustard, paprika, cayenne, thyme, and red pepper flakes. Remove from heat and stir in the fresh chives and parsley. Season with salt and pepper to taste. Spoon a few tablespoons into a small bowl for brushing on the steaks while they cook, and set aside the rest for the slider buns.
Cook the Steaks Preheat your grill to medium-high heat with both direct and indirect heat zones. Take the steaks out of the fridge and let them sit at room temperature for 30 minutes. Cook the steaks over direct heat for 2-3 minutes per side, being careful not to char them. If flames get too high, move them to the indirect heat zone. Brush both sides with cowboy butter as they cook. After about 5-6 minutes total, move steaks to indirect heat until they reach your desired doneness. Remove and let them rest under tented foil for 10 minutes before slicing.
Caramelize Onions Place a cast iron skillet on the grill over direct heat. Add a few tablespoons of butter to the hot skillet, and once melted, add your thinly sliced sweet onions. Cook until golden and caramelized, stirring occasionally, about 15 minutes.
Assemble Sliders Preheat your oven to broil and line a baking sheet with parchment paper. Split the slider buns and brush the inside of each with the remaining cowboy butter. Place havarti cheese on both the top and bottom buns, then add the caramelized onions to the bottom buns. Slice your rested steak into strips and place a few pieces on each bottom bun. Broil for 1-2 minutes until the cheese starts to melt. Top with the upper buns, slice if desired, and enjoy immediately!
Kitchen Equipment Needed
For Making Cowboy Butter:
- Medium mixing bowl – for combining all that delicious butter and seasonings
- Fork or wooden spoon – to mix everything together smoothly
- Sharp knife – for mincing garlic and chopping fresh herbs
- Cutting board – to keep your counter clean while prepping
- Microplane or zester – for getting that perfect lemon zest
- Citrus juicer or fork – to get every drop of fresh lemon juice
For Cooking the Steaks:
- Grill or large skillet – for getting that beautiful sear on your steak
- Tongs – essential for flipping steaks safely without piercing them
- Meat thermometer – to make sure your steak is cooked exactly how you like it
- Cast iron skillet – perfect for caramelizing those sweet onions
- Aluminum foil – for tenting the steaks while they rest
For Assembly:
- Baking sheet – for broiling those sliders to perfection
- Parchment paper – keeps everything from sticking and makes cleanup easy
- Pastry brush – for spreading that cowboy butter on the buns
- Sharp knife – for slicing your cooked steak into perfect strips
Helpful Tips!
Here are my best tips to make sure your cowboy butter steak sliders turn out absolutely perfect every time!
- Let your steak come to room temperature – take it out of the fridge 30 minutes before cooking so it cooks evenly all the way through
- Don’t skip the resting time for seasoned steak – those few hours in the fridge really let the salt and pepper work their magic
- Make cowboy butter ahead of time – it actually gets better as it sits, and you can store it in the fridge for up to a week
- Use a meat thermometer – takes all the guesswork out of getting your steak cooked exactly how you like it
- Slice steak against the grain – this makes even tougher cuts super tender and easy to bite through
- Don’t press down on the steak while cooking – you’ll just squeeze out all those delicious juices we want to keep
- Toast your slider buns lightly – this prevents them from getting soggy from all that amazing cowboy butter
- Caramelize onions low and slow – rushing this step means you’ll miss out on that sweet, golden perfection
- Save some cowboy butter for serving – people will want to add more of that incredible flavor to their sliders
- Assemble sliders right before serving – keeps everything hot and prevents soggy buns
- Use good quality cheese – havarti melts beautifully, but Swiss or provolone work great too if that’s what you have

What to Serve with Cowboy Butter Steak Sliders?
I love serving these cowboy butter steak sliders with crispy sweet potato fries because the sweetness goes so well with all that garlic and herb flavor. My family always asks for a simple green salad on the side because it helps balance out the rich steak and butter. The first time I made grilled corn with these sliders, everyone kept going back for more because that sweet corn taste is perfect with the savory meat. Mac and cheese is another favorite at our house – it has that creamy, comforting taste that makes the whole meal feel special. I also like to make a quick cucumber salad because it’s cool and fresh, which is nice after eating something so rich. These sides work great whether you want something light and healthy or more indulgent. You can also serve roasted vegetables or even crispy onion rings if you want to make it a really big meal. The important thing is picking sides that your family enjoys and that don’t compete with those amazing slider flavors.
Variations and Substitutions
Steak Substitutions:
- Ground beef patties – use seasoned ground beef if steak is too pricey or you want something more familiar
- Chicken breasts – pound them thin and they work beautifully with the cowboy butter
- Pork tenderloin – slices up perfectly and has a mild flavor that loves all those herbs
- Portobello mushrooms – great vegetarian option that soaks up the cowboy butter amazingly
Cheese Options:
- Swiss cheese – melts nicely and has a mild flavor that won’t compete
- Provolone – adds a little more sharpness but still creamy
- Cheddar – classic choice that everyone loves
- Pepper jack – if you want to add some extra heat to the mix
Cowboy Butter Modifications:
- Add fresh rosemary – chop it fine for an earthy, piney flavor
- Use lime instead of lemon – gives it a different citrus twist
- Skip the cayenne – if you don’t like heat, just leave it out
- Add worcestershire sauce – gives it a deeper, more savory taste
Bun Alternatives:
- Brioche buns – buttery and rich, perfect for special occasions
- Pretzel rolls – adds a fun salty twist
- Texas toast – cut thick slices for an open-faced version
How to Store How to Cowboy Butter Steak Sliders?
Storing these sliders is all about keeping things separate so they stay delicious! I always put leftover steak in the fridge in an airtight container where it keeps for up to three days, and that amazing cowboy butter stays good for about a week. When I reheat the steak, I use the oven at 350°F for 10 minutes instead of the microwave because it keeps the meat tender. The caramelized onions store well in the fridge too. Never store assembled sliders or you’ll get soggy buns – if you absolutely have to, wrap them in parchment paper briefly, but these are really meant to be enjoyed fresh and hot!
FAQ
1. Can I make the cowboy butter ahead of time?
Absolutely! The cowboy butter actually gets even better when you make it a day or two ahead because all those flavors have time to blend together. Just store it covered in the fridge and let it come to room temperature before using. It keeps for up to a week, so you can make extra for other meals too!
2. What cut of steak works best for these sliders?
Ribeye and sirloin are my go-to choices because they’re tender and full of flavor, but you can also use strip steak or even filet mignon if you’re feeling fancy. Just avoid really tough cuts that need long, slow cooking – we want something that cooks quickly and stays juicy.
3. Can I cook the steak indoors instead of grilling?
Of course you can! Use a cast iron skillet or heavy pan over medium-high heat and you’ll get that same beautiful sear. The cowboy butter will still melt perfectly over the hot steak, and honestly, sometimes indoor cooking gives you better control over the temperature.
4. How do I know when the steak is done?
A meat thermometer is your best friend here! For medium-rare, aim for 130-135°F, but remember the steak keeps cooking while it rests, so pull it off just before your target temperature. If you don’t have a thermometer, press the steak – it should feel slightly firm but still give a little.
5. Can I substitute the havarti cheese?
Yes! Swiss, provolone, or even good old cheddar work beautifully. Pick whatever your family loves – just make sure it’s a cheese that melts well and won’t overpower all those amazing cowboy butter flavors.
6. How spicy is the cowboy butter?
It has a gentle warmth from the cayenne and red pepper flakes – nothing too crazy! If your family doesn’t like heat at all, just skip those ingredients and the butter will still be absolutely delicious with all the garlic and herbs.
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Ingredients
Adjust Servings
1 1/ 2 pounds boneless steak such as ribeye filet, sirloin | |
neutral oil as needed | |
kosher salt to taste | |
freshly cracked black pepper to taste | |
3 sweet onions thinly sliced | |
9 slider buns | |
3/ 4 pound sliced havarti cheese |
For The Cowboy Butter
1 stick unsalted butter at room temperature | |
4 garlic cloves minced | |
1/ 2 lemon zested and juiced | |
1 tablespoon dijon mustard | |
1 teaspoon paprika | |
1/ 2 teaspoon cayenne | |
1/ 2 teaspoon dried thyme | |
1 teaspoon red pepper flakes | |
1 tablespoon chives minced | |
2 tablepoons fresh parsley minced | |
kosher salt and pepper to taste |
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