Slow Cooker Garlic Butter Steak and Potatoes Recipe
This Slow Cooker Garlic Butter Steak and Potatoes recipe features fork-tender sirloin, flavorful baby honey gold potatoes, slow-cooked in Worcestershire sauce, garlic, onion soup mix, butter, and beef broth. I make this on hectic weekdays when I can just throw everything into the slow cooker and come home to dinner already done (and smelling amazing). I’ll add a side salad or some crusty bread to soak up that butter sauce.
I’ve made this more times than I can count, and the biggest game-changer was keeping the full 8 tablespoons of butter. I tried cutting it back once and lost all the richness. The first time I made it, the flavors tasted flat until I realized I hadn’t let it cook for the full 8 hours. Low and slow is the best way with this recipe.
| Prep Time | Cook Time | Servings | Prep Level |
|---|---|---|---|
| 5 minutes | 8 hours on low heat | 6 | Beginner + |

Ingredient Notes
Here’s what you’ll need to make this cozy, one-pot steak and potatoes dinner.
- Sirloin steak: Top sirloin works best for this recipe because it’s lean and won’t turn greasy, but has enough marbling that it will get nice and tender when it cooks. Cut it into one-inch bites so each piece cooks evenly.
- Baby Honey Gold potatoes: The thin skin and waxy texture hold up well through the long cook time and then turn buttery-soft without falling apart. If you can only find larger Honey Golds, halve them and add an extra ¼ cup of broth to compensate.
- Worcestershire sauce: Don’t skip this because it adds a little bite to it and a little acidity that cuts through the richness with the butter.
- Minced garlic: You can use fresh or jarred. When it cooks for 8 hours, it will mellow out and won’t stay too sharp.
- Dried onion soup mix: This packet is doing a lot of the seasoning work, so be sure to test the flavor after cooking before you add any salt.
- Beef broth: Keeps everything moist and creates the base of the sauce. Use low-sodium if you want more control over saltiness since the soup mix is already salty.
- Butter: Melts down into the broth and gives it that rich flavor rather than a watery one.
Full printable recipe card with measurements and instructions listed at the bottom of the post.
If you like the onion soup mix flavors and want a different protein, give this 5-ingredient Crock Pot Mississippi Chicken a try.

Step-By-Step Instructions

Start by adding your sirloin steak and potatoes to the slow cooker. Next, add the Worcestershire sauce, minced garlic, packet of onion soup mix, and beef broth.

Place the stick of butter on top and close the lid.

Cook on low for 8 hours. You’ll know it’s done when a fork slides through the potatoes without resistance and the steak pulls apart easily with a spoon (you won’t even need a knife). Don’t rush it, because stopping the cooking early is the most common reason the potatoes come out firm.


More Delicious Beefy Slow Cooker Meals
If you love this recipe, these three follow the same easy dump-and-go method with beef at the center.
- I love crock pot beef and gravy because it uses a similar broth-based sauce and it just as delicious over potatoes.
- Slow cooker beef brisket takes the same low-and-slow approach, but has a bigger cut.



can you use other types of steak such as a ribeye?
I haven’t tried it, but you definitely can. It might not come out as tender, but it will still be delish!
Looking at the picture, it looks awful greasy. What happens if you leave out the butter or just decrease it.
Hi BJ,
You can either decrease it or leave the butter out. It will still taste great!
This is a good recipe except seasoning, I added salt and pepper to the meat, and cut up some bell peppers and onions on the meat before I added the garlic, soup mix and Worcestershire sauce, I really like the potatoes, I mashed them up added milk and sour cream, then made a gravy from the sauce. It is very bland without seasonings.
Wow, those sound like great tweaks! I love it and thank you for sharing so we can try it. The way you made the gravy sounds amazing!
Show me the recipe.
Hi Nu,
If you scroll to the bottom of the post, you will find the recipe card with all the instructions and ingredients. Hope you love it!