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Slow cooker Korean beef with flank steak slices in a sweet and savory sauce, all inside a crock pot.

Slow Cooker Korean Beef

This slow cooker Korean beef is flank steak simmered with soy sauce, sesame oil, brown sugar, garlic and ginger in a crock pot. The meat is fall apart tender and perfect served over steamed rice!
Course Main
Cuisine Asian
Keyword Slow cooker korean beef
Prep Time 10 minutes
Cook Time 3 hours
Total Time 3 hours 10 minutes
Servings 6
Calories 258kcal
Author Sara Welch


  • 1 1/2 pounds flank steak thinly sliced
  • 1/4 cup cornstarch
  • 1 tablespoon sesame oil
  • 1 tablespoon rice vinegar
  • 2 teaspoons minced garlic
  • 1 teaspoon minced ginger
  • 1/2 cup beef broth
  • 1/2 cup low sodium soy sauce
  • 1/3 cup brown sugar
  • 1 1/2 teaspoons sesame seeds
  • 2 tablespoons sliced green onions


  • Place the flank steak and cornstarch in a bowl, stir to coat the meat evenly.
  • Place the meat in a slow cooker.
  • In a small bowl, whisk together the sesame oil, rice vinegar, garlic, ginger, beef broth, soy sauce and brown sugar.
  • Pour the sauce over the meat and stir to combine.
  • Cover the slow cooker and cook on LOW for 4-5 hours or HIGH for 2-3 hours.
  • Sprinkle with sesame seeds and green onions, then serve.



Calories: 258kcal | Carbohydrates: 18g | Protein: 25g | Fat: 8g | Saturated Fat: 2g | Cholesterol: 68mg | Sodium: 746mg | Potassium: 451mg | Sugar: 12g | Calcium: 42mg | Iron: 2.4mg