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There’s something extraordinarily comforting about a slow-cooked meal that fills the house with enticing aromas, and Slow Cooker Mongolian Beef is a true stand-out. This dish combines tender beef with a sweet and savory sauce that will make your taste buds dance. The slow cooker works its magic, transforming simple ingredients into a satisfying dish that feels like a warm hug. Imagine digging into a bowl of fluffy rice topped with pieces of delectable, melt-in-your-mouth beef that’s coated in a glossy sauce. Just thinking about it makes my mouth water!

I remember the first time I made this recipe for my family. I was looking for something easy yet impressive to serve on a busy weeknight, and this slow cooker recipe came to the rescue. All I had to do was toss the ingredients together, let the slow cooker do its thing, and voilà! Dinner was served. If you’re searching for something that not only pleases the family’s palate but is also a breeze to make, then this dish is perfect for you. Give it a go, and I assure you, it will be a home-cooked favorite.

Why You’ll Love This Recipe

Simple & Quick: With minimal effort, you can have a fantastic meal ready to enjoy in 6-8 hours.
Irresistible Flavor: The sweet and savory sauce nicely caramelizes the beef, creating a burst of flavor.
Eye-Catching Appeal: The vibrant green onions and rich sauce add an inviting look to your plate.
Flexible Serving: Perfect for family dinners or meal prepping for the week, and it pairs well with various sides.
Diet-Friendly Options: Easily adapt with gluten-free soy sauce if needed.

Ingredients You’ll Need

1 1/2 pounds flank steak: This cut is ideal for slow cooking because it becomes tender and juicy. If you can’t find flank steak, skirt steak works well too.
1/4 cup soy sauce: A key player in bringing depth and umami flavor. Tamari can be a good gluten-free alternative.
1/4 cup beef broth: Adds moisture and enhances the savory taste. Homemade or low sodium options are best for control over saltiness.
1/4 cup dark brown sugar: Provides that rich sweetness that balances the saltiness of the soy sauce. You could substitute with coconut sugar if you prefer.
1 teaspoon jarred minced garlic: For a quick flavor boost without the peeling and chopping. Fresh garlic can enhance flavors even more!
1/4 teaspoon powdered ginger: Instant ginger flavor without the fuss. Fresh ginger can be used in place as well—just use a little more.
1 teaspoon sriracha sauce: Adds a hint of heat, but you can adjust the amount to your taste or switch it out for a milder pepper sauce if preferred.
2 tablespoons cornstarch: This is essential to thicken the sauce for that glossy, professional finish.
1/2 bunch green onions: Adds a fresh crunch and beautiful color to the completed dish. Use both the white and green parts for maximum flavor.

How to Make Slow Cooker Mongolian Beef

Add the Beef: Place the whole 1 1/2 pounds flank steak into your slow cooker. It’s important not to cut it yet to retain all those juices.
Prepare the Sauce: In a mixing bowl, whisk together 1/4 cup soy sauce, 1/4 cup beef broth, 1/4 cup dark brown sugar, 1 teaspoon jarred minced garlic, 1/4 teaspoon powdered ginger, and 1 teaspoon sriracha sauce until well combined.
Thicken the Sauce: In a separate small bowl, whisk together 2 tablespoons cornstarch with 2 tablespoons of water. This is your slurry which will thicken the sauce perfectly.
Combine and Pour: Whisk the cornstarch mixture into the soy sauce mixture until it’s nice and smooth, and then pour it over the beef in the slow cooker.
Cook It Slow: Cover with the lid and cook it on low for 6-8 hours, or until the beef is fork-tender and pulls apart easily.
Shred the Beef: Once cooked, remove the steak from the slow cooker and shred it with a fork. For skirt steak, slice it thinly.
Add Green Onions: Toss in roughly chopped green onions into the slow cooker with the remaining sauce and let it cook for about 15-20 more minutes. This will help soften them while retaining their crunch.
Serve: Dish up this wonderful creation with steamed rice or your side of choice.

Storing & Reheating

Leftovers of your Slow Cooker Mongolian Beef can be stored in the refrigerator for up to 4 days in an airtight container. For longer storage, freeze portions in freezer-safe containers for up to 3 months. When ready to eat, simply reheat in the microwave for 1-2 minutes or in a pan on medium heat until warmed through. Keep in mind that the texture may change slightly after freezing, but a splash of beef broth can help refresh the sauce.

Chef’s Helpful Tips

Be cautious not to overcook the beef; especially if using a different cut of meat, as this can lead to a dry texture.
Letting the meat sit for about 10 minutes before shredding can help it retain its juices.
Feel free to add vegetables like bell peppers or snap peas during the last hour of cooking for extra nutrients.
For a deeper flavor, let your sauce simmer for an additional 30 minutes after shredding the beef with the onions if time allows.
This recipe is easily doubled, making it a fantastic option for meal prep!

With its sweet and savory profile, Slow Cooker Mongolian Beef is not just a meal; it’s the answer to busy weeknights and is perfect for those cozy weekends at home. This dish encourages you to play around with flavors and perhaps add even your favorite veggies or side dishes. There’s always room for creativity when it comes to cooking, and I hope you find joy in creating this warm, scrumptious meal for you and your loved ones.

Recipe FAQs

Can I use other cuts of meat for this recipe?

Absolutely! While flank steak is recommended for its tenderness, cuts like chuck roast or even sirloin work well and will yield a delicious result. Just keep an eye on cooking times, as different cuts may require slight adjustments.

Is this recipe gluten-free?

You can easily make this dish gluten-free by substituting regular soy sauce with gluten-free tamari. Just make sure to check your beef broth to ensure it’s gluten-free as well.

How can I make this recipe spicy?

To amp up the heat, consider adding more sriracha sauce or even a chopped red chili pepper to the sauce mixture. If you love spicy food, garnishing it with sliced jalapeños before serving can add an extra kick.

Can I prepare this dish in advance?

Yes, you can prepare the sauce and marinate the steak the night before. Just let the steak soak in the sauce overnight in the fridge, which will deepen the flavor. Then, cook it in the slow cooker the next day!