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Crockpot Mongolian Beef Recipe

4 from 62 reviews

Crockpot Mongolian Beef is a tender and flavorful dish featuring thinly sliced flank steak simmered in a sweet and savory sauce of soy, brown sugar, garlic, and ginger. This easy slow-cooked recipe yields melt-in-your-mouth beef, perfect for serving over steamed rice. Despite its name, the dish is rooted in Chinese cuisine and is a popular takeout favorite recreated effortlessly at home using a crockpot.

Ingredients

Scale

Main Ingredients

  • 1 1/2 lbs flank steak, sliced thin
  • 1/2 cup soy sauce
  • 1/4 cup brown sugar
  • 3 garlic cloves, minced
  • 1 tsp ginger, minced

Thickening Agent

  • 2 tbsp cornstarch
  • 1/4 cup water

Instructions

  1. Prepare the crockpot: Add the thinly sliced flank steak, soy sauce, brown sugar, minced garlic, and minced ginger directly into the crockpot. Stir gently to combine all ingredients evenly.
  2. Slow cook the beef: Set the crockpot to low heat and cook the mixture for 4 hours, allowing the beef to become tender and absorb the flavorful sauce.
  3. Thicken the sauce: In the last 30 minutes of cooking, whisk together the cornstarch and water until smooth, then stir this slurry into the crockpot. This will help thicken the sauce to a glossy finish.
  4. Final cooking stage: Continue cooking on low for the remaining 30 minutes to let the sauce thicken and coat the beef perfectly.
  5. Serve: Spoon the Mongolian beef over freshly steamed rice and enjoy this comforting, sweet-savory meal.

Notes

  • Slice the flank steak thinly against the grain for the most tender bites.
  • Adjust brown sugar to taste if you prefer a sweeter or less sweet dish.
  • Use low sodium soy sauce if you want to control the salt content.
  • The cornstarch slurry is essential to achieve the signature thick sauce; do not skip it.
  • Leftovers can be stored in the refrigerator for up to 3 days and reheated gently.

Keywords: Mongolian beef, crockpot recipe, slow cooker beef, Chinese beef dish, easy dinner recipe, flank steak recipe, sweet savory beef