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Crockpot Mongolian Beef

Rhonda Anderson
Print Recipe Pin Recipe
Prep Time 15 minutes
Cook Time 6 hours
Total Time 6 hours 15 minutes
Course Dinner Ideas
Cuisine Asian-inspired
Servings 6 servings
Calories 300 kcal

Ingredients
  

  • 2 lbs flank steak (or sirloin), thinly sliced against the grain
  • ¼ cup cornstarch
  • ¾ cup low-sodium soy sauce
  • ¾ cup brown sugar (light or dark)
  • ½ cup beef broth
  • 4 cloves garlic, minced
  • 1 tbsp fresh ginger, grated
  • 2 tbsp hoisin sauce (optional, for depth)
  • 2 tbsp sesame oil
  • ½ tsp black pepper
  • 1–2 tsp red pepper flakes (optional, for heat)
  • 1 cup green onions (cut into 2-inch pieces, added near the end)
  • Sesame seeds (for garnish)

Instructions
 

  • Step 1: Prep the Beef: Slice beef thinly against the grain. Toss slices in cornstarch until lightly coated. Shake off excess.
  • Step 2: Make the Sauce: In a bowl, whisk together soy sauce, brown sugar, beef broth, garlic, ginger, hoisin (if using), sesame oil, black pepper, and red pepper flakes.
  • Step 3: Assemble in Crockpot: Place beef into the crockpot. Pour sauce mixture over the beef and stir to coat.
  • Step 4: Slow Cook: Cover and cook on low for 6–7 hours or high for 4 hours, until beef is tender.
  • Step 5: Add Green Onions: About 20 minutes before serving, stir in green onions.
  • Step 6: Garnish u0026 Serve: Sprinkle with sesame seeds and extra scallions if desired.