Mongolian Beef CrockPot Recipe (2024)

Mongolian Beef is one of those classic Chinese food dishes you just can't get enough of.

I like to make it at home, in a "Take Out/Fake Out" way to save us from extra oil, fat, and (in our case) gluten.

This crockpot recipe uses a homemade Hoisin sauce but if you have a bottled favorite you can use that instead.

Originally posted in 2008 during my Year of Slow Cooking.

Mongolian Beef CrockPot Recipe (1)

How to Make Homemade Mongolian Beef from Scratch



Day 157.

Ever since I made Chinese Lemon Chicken, I've wanted to make Mongolian Beef.

Yesterday, I gathered enough guts to give it a go.

The results were phenomenal.

I gave myself a pat on the back.



This is an excellent crockpot meal. Since we are gluten free, I needed to play around a bunch of sauces and flavors because we can't use packaged Hoisin sauce.

If you can use hoisin sauce, you might want to simplify.

But my concoction worked, and surprised Adam and the kids---one of whom has never had "real" Mongolian Beef.

The Ingredients to Make Homemade Mongolian Beef

serves 4
(2 adults, 2 kids -- if you'd like more, double the ingredients)


Mongolian Beef CrockPot Recipe (2)

Hold on to your hat!
There are a lot of ingredients --- don't get mad!

(updated: I've discovered that a few companies are now putting out a gluten free variety of Hoisin sauce. Feel free to use that if you don't want to make your own! And if you aren't gluten free, just ignore me! ;-) )

FOR THE MEAT:

  • 2 pounds flank steak
  • 3 cloves of garlic, minced
  • 4 sliced green onions--one is for garnish
  • 1 teaspoon dried minced onion (or 1/2 fresh onion, diced very small)

THIS IS THE SAUCE

-- if you have bottle Hoisin, go ahead and use it here instead(approx 2 cups -- 18 ounce to 20 ounce bottle)

  • 1/2 cup soy sauce (I used La Choy)
  • 1/4 cup white wine
  • 1/4 cup cooking sherry
  • 1/2 tablespoon white wine vinegar (optional--I forgot to add it!)
  • 1 teaspoon sesame oil
  • 1 teaspoon molasses
  • 1 teaspoon ground ginger
  • 1/4 teaspoon black pepper
  • 1/2 tablespoon peanut butter (if allergic, use black bean paste)
  • 3 tablespoon brown sugar

AND THEN:

  • 1/4 cup cornstarch (to dredge meat--don't add to sauce mixture)
  • 1 teaspoon red chili flakes --- optional -- if you don't like things spicy, you can add at the table if you'd like.

The Directions to Make Homemade Mongolian Beef

--slice your meat in thin strips and toss in a Ziploc bag with cornstarch.

--add all of the liquid and dried spices to your crockpot, and the peanut butter, and mix well.

Add the garlic and three of the sliced green onions. If you are using fresh onion, add that now, too.

--put your meat on top, and toss gingerly to coat.

Cover and cook on low for 4-6 hours. Flank steak is thin and have very little fat, and will cook quickly.

There isn't a lot of liquid in this dish, so if your crock tends to cook hot, please check it after 3 hours.

The meat is done when it is no longer pink and has reached desired tenderness.

I cooked our meat in a 6qt oval slow cookerand it was done after 4 hours on low.

Serve over steamed or fried rice, and garnish with freshly sliced green onion.

Mongolian Beef CrockPot Recipe (3)

The Verdict.

This serves enough to feed 2 hungry adults for dinner.

If you have a large family, you're going to need more meat and double the sauce.

Delicious. This is so good---before this year I would not have attempted to make something so "complicated" in a crockpot.

But really, the only complicated thing was figuring out what flavors would work and assembling the ingredients---the actual cooking and food preparation was a snap, and the kitchen was clean and mopped at 12noon.

We had all of the ingredients on hand for this meal, except for the meat and the green onion.

Much better for our wallets, than take-out, and much, much, much less greasy than take-out.
And it was gluten-free!

enjoy!

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Mongolian Beef CrockPot Recipe (4)

Mongolian Beef CrockPot Recipe (5)

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Mongolian Beef CrockPot Recipe (6)

Mongolian Beef

Yield: 4

Author: Stephanie O'Dea AYearofSlowCooking.com

Prep time: 35 MinCook time: 6 HourTotal time: 6 H & 35 M

How to make gluten free Mongolian Beef in the crockpot slow cooker

Ingredients

For the meat

  • 2 pounds flank steak
  • 3 cloves of garlic, minced
  • 4 sliced green onions--one is for garnish
  • 1 teaspoon dried minced onion (or 1/2 fresh onion, diced very small)

For the sauce

  • 1/2 cup soy sauce (I used La Choy)
  • 1/4 cup white wine
  • 1/4 cup cooking sherry
  • 1/2 tablespoon white wine vinegar (optional--I forgot to add it!)
  • 1 teaspoon sesame oil
  • 1 teaspoon molasses
  • 1 teaspoon ground ginger
  • 1/4 teaspoon black pepper
  • 1/2 tablespoon peanut butter (if allergic, use black bean paste)
  • 3 tablespoon brown sugar

And then

  • 1/4 cup cornstarch (to dredge meat--don't add to sauce mixture)
  • 1 teaspoon red chili flakes --- optional -- if you don't like things spicy, you can add at the table if you'd like.

Instructions

  1. --slice your meat in thin strips and toss in a Ziploc bag with cornstarch.
  2. --add all of the liquid and dried spices to your crockpot, and the peanut butter, and mix well.
  3. Add the garlic and three of the sliced green onions. If you are using fresh onion, add that now, too.
  4. --put your meat on top, and toss gingerly to coat.
  5. Cover and cook on low for 4-6 hours. Flank steak is thin and have very little fat, and will cook quickly.
  6. There isn't a lot of liquid in this dish, so if your crock tends to cook hot, please check it after 3 hours.
  7. The meat is done when it is no longer pink and has reached desired tenderness.
  8. I cooked our meat in a 6qt oval slow cooker and it was done after 4 hours on low.
  9. Serve over steamed or fried rice,and garnish with freshly sliced green onion.

https://www.ayearofslowcooking.com/2008/06/mongolian-beef-crockpot-recipe.html

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Mongolian Beef CrockPot Recipe (2024)

FAQs

How do you keep beef from getting tough in a slow cooker? ›

Add Just Enough Liquid

To keep a pot roast from drying out, your slow cooker needs liquid to create a moist environment, and that can include meat or vegetable stock, wine or water.

Why does my beef go tough in slow cooker? ›

“If you're cooking meat, you'll know it's done when it is fork-tender, meaning you can cut into it easily with just a fork,” she says. When meat is overcooked, it will be “tough and dry,” while overcooked vegetables will be mushy.

How much liquid do you put in slow cooked meat? ›

How much liquid do I add? Water or liquid is necessary to create steam. When cooking meat or poultry, the water or liquid level should cover the ingredients to ensure effective heat transfer throughout the crock. Some manufacturers of slow cookers recommend adding liquid to fill the stoneware 1/2 to 3/4 full.

How long to tenderize beef in slow cooker? ›

Simply add the meat to your slow cooker with aromatics, stock and sauces and cook either on High for 4-5 hours or on Low for 5-8 hours. How do you make meat tender in a slow cooker? Choosing a cut of beef best suited for low and slow cooking is the ideal way to get extra tender meat.

Does meat get more tender the longer you cook it in a slow cooker? ›

Collagen makes meat tough when cooked quickly, but when slow-cooked, it breaks down into gelatin, giving you that juicy, tender mouthfeel. Fattier — and cheaper — cuts of beef can also be good for slow cooking, because the fat helps to ensure the beef won't dry out while adding extra flavour.

What happens if you don't brown meat before a slow cooker? ›

Browning Is Better

And if you dredge the meat in flour before you brown it, your sauce will thicken up to make a gravy. You should always brown ground beef or any ground meat in a skillet before adding it to your slow cooker to prevent the meat from clumping up or from adding excess grease to your cooked dish.

Is 4 hours on high the same as 8 hours on low in a slow cooker? ›

The difference between "High" and "Low" on slow cookers seems to differ with every brand and model. One thing that is consistent, though, is that food takes seven to eight hours to reach a simmer point (around 210°) on low; versus three to four hours on high.

What happens if there is not enough liquid in a slow cooker? ›

Not adding enough liquid can lead to burning.

"It's important to add enough liquid to ensure the bottom of your dish doesn't burn."

Can you overcook beef in a slow cooker? ›

While slow cooker recipes are designed to cook for extended periods of time, they can still become overcooked if left on the wrong setting for too long. In general, it's best to stick to the indicated cook time on the recipe you're following.

What is the most tender beef for a slow cooker? ›

Chuck roast and top round roast are good choices for the slow cooker, which allows them to tenderize over time.

Why are my potatoes still hard in the crockpot? ›

Insufficient Liquid: If there wasn't enough liquid in the crockpot, it could have caused uneven cooking. Potatoes need to be fully submerged in liquid to cook evenly. Old Potatoes: Very old or stored potatoes can become starchy and may not soften as well during cooking. It's best to use fresh, firm potatoes.

Should you flip meat in a slow cooker? ›

Should I Flip My Roast In The Slow Cooker?: There is no need to flip meat in a crock pot. In fact, I don't recommend trying it because it will be more hassle than it's worth.

How do you cook beef so it doesn't get tough? ›

To cook it until it's so tender it falls apart, you'll need to choose a joint like chuck and blade or beef brisket and either braise, slow roast or slow cook it for at least a couple of hours.

What happens if you leave beef in slow cooker too long? ›

That being said, however, it's not a good idea to leave food in a slow cooker for days at a time. The food will not only stain the cooker's interior, but it will also be soggy and overcooked and be left open to bacteria.

Why does beef dry out in slow cooker? ›

The most likely cause of this is overcooking. As meat cooks, its muscle fibers shorten in both length and width and eventually squeeze out the juices they normally hold. As you can imagine, this leaves meat dry, and often stringy in texture. To avoid this problem, choose less-tender cuts of meat.

Why does my beef always come out tough? ›

Typically, leaner cuts like the flank or skirt can be chewy if not prepared correctly. Cooking Method: Overcooking can cause the steak to lose its moisture, making it dry and chewy. Conversely, undercooking can make certain cuts feel tough. Aging Process: Steaks that are not properly aged can be less tender.

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