Save to Pinterest Sirloin steak cubes are seared until browned, then combined with halved baby potatoes and diced onion in a slow cooker. A rich garlic butter mixture with smoked paprika, thyme, rosemary, and red pepper flakes coats everything before slow cooking for 3.5 to 4 hours. The result is tender, flavorful steak and potatoes in a luxurious buttery sauce that's perfect served over rice, mashed potatoes, or with crusty bread to soak up the juices.
It was a rainy Tuesday when I threw everything into the slow cooker and forgot about it for hours. That first bite of tender steak with buttery potatoes made me realize sometimes the best dinners happen when you barely try at all.
My husband walked through the door after work and immediately asked what smelled like a fancy steakhouse. Watching his face when I told him it took fifteen minutes of actual effort might be my favorite kitchen moment this year.
Ingredients
- 1.5 lbs sirloin steak: Cutting into cubes helps every piece get coated in that garlic butter and cook evenly
- 1.5 lbs baby potatoes: These little guys hold their shape perfectly during long cooking and soak up all that flavor
- 1 small yellow onion: Adds a subtle sweetness that balances the rich butter sauce
- 5 tablespoons unsalted butter: The backbone of the whole dish dont even think about reducing this
- 6 cloves garlic: Fresh minced garlic makes all the difference here jarred garlic just hits different
- 1 teaspoon smoked paprika: Gives everything this gorgeous smoky depth without overwhelming the other flavors
- 1/2 teaspoon dried thyme: Earthy and classic pairs beautifully with both steak and potatoes
- 1/2 teaspoon dried rosemary: Just enough piney flavor to make the house smell incredible
- 2 tablespoons olive oil: Essential for getting that gorgeous sear on the steak before slow cooking
Instructions
- Sear the steak:
- Heat olive oil in a large skillet over medium-high heat and cook steak cubes in batches for 1 to 2 minutes until browned on all sides then transfer to your slow cooker.
- Add the vegetables:
- Toss the halved baby potatoes and diced onion right into the slow cooker with the seared steak.
- Make the garlic butter:
- Whisk together melted butter minced garlic salt pepper smoked paprika thyme rosemary and red pepper flakes in a small bowl until fragrant.
- Combine everything:
- Pour that glorious garlic butter mixture evenly over the steak and potatoes then give it a gentle stir to coat everything.
- Let it cook:
- Cover and cook on LOW for 3.5 to 4 hours until the potatoes are fork tender and the steak is meltingly soft.
- Finish and serve:
- Taste and add more salt or pepper if needed then sprinkle fresh parsley on top before serving.
Save to Pinterest This recipe became my go-to when we had friends over for dinner and nobody could believe something this delicious came from a slow cooker. Now its the meal I make when I want to impress without actually trying.
Make It Your Own
Ive learned that swapping in Yukon Gold potatoes works perfectly when baby potatoes arent available. The texture is slightly creamier but honestly just as good.
Serving Suggestions
A simple green salad with vinaigrette cuts through all that rich butter beautifully. Sometimes I just serve it with steamed broccoli and call it dinner.
Storage and Meal Prep
This keeps surprisingly well in the refrigerator for up to four days and reheats perfectly. The flavors actually get better after a night melding together.
- Store in airtight containers with some of that butter sauce spooned over the top
- Reheat gently with a splash of beef broth to refresh the sauce
- Freeze individual portions for those nights when cooking anything feels impossible
Save to Pinterest Theres something so satisfying about a meal that takes care of itself while you go about your day. This is comfort food at its absolute easiest.
Recipe FAQs
- → Can I use a different cut of beef?
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Yes, ribeye, New York strip, or tenderloin work well. Avoid tough cuts like chuck roast as they require longer cooking times to become tender.
- → Do I have to sear the steak first?
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Searing isn't strictly required but highly recommended. It creates a flavorful crust and adds depth to the final dish.
- → Can I cook this on HIGH setting?
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Yes, cook on HIGH for 1.5 to 2 hours. Check for doneness after 1.5 hours as the steak may cook faster than expected.
- → What can I serve with this dish?
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Great with steamed green beans, roasted asparagus, or a fresh green salad. Crusty bread is perfect for soaking up the garlic butter sauce.
- → Can I make this dairy-free?
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Substitute the butter with olive oil or a dairy-free butter alternative. The texture and flavor will be slightly different but still delicious.
- → How do I store leftovers?
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Store in an airtight container in the refrigerator for up to 3 days. Reheat gently on the stove with a splash of beef broth to refresh the sauce.
