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Slow Cooker Korean Beef

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Slow Cooker Korean Beef is a flavorful, tender, and juicy dish made with beef cooked in a savory Korean-style sauce. This easy, hands-off recipe combines soy sauce, garlic, ginger, and brown sugar, creating a sweet and savory glaze. Perfect for busy weeknights or meal prepping, this dish pairs wonderfully with rice or veggies for a complete meal.

Ingredients

  • 2 lbs beef chuck roast or flank steak, thinly sliced
  • 1/4 cup soy sauce
  • 1/4 cup brown sugar
  • 1/4 cup sesame oil
  • 3 cloves garlic, minced
  • 1 tbsp freshly grated ginger
  • 1/4 cup rice vinegar
  • 1 tbsp cornstarch (optional, for thickening)
  • 1 tbsp sesame seeds (for garnish)
  • 23 green onions, sliced (for garnish)
  • 1/4 tsp red pepper flakes (optional, for heat)

Instructions

  • Prepare the Beef: If using a beef chuck roast, slice the beef into thin strips. If using flank steak, slice it against the grain into thin strips.
  • Combine Sauce Ingredients: In a small bowl, whisk together the soy sauce, brown sugar, sesame oil, garlic, ginger, and rice vinegar.
  • Add to Slow Cooker: Place the sliced beef in the slow cooker and pour the sauce mixture over the top. Stir to ensure the beef is well coated.
  • Cook: Cover and cook on low for 6-8 hours or on high for 3-4 hours, until the beef is tender and cooked through.
  • Thicken Sauce (Optional): If you’d like a thicker sauce, remove the beef from the slow cooker and mix cornstarch with a little water. Stir this mixture into the sauce, then cook on high for an additional 15-20 minutes until thickened.
  • Garnish and Serve: Once the beef is cooked and the sauce has thickened (if desired), serve the Korean beef over rice. Garnish with sesame seeds and sliced green onions. Optionally, add red pepper flakes for a little heat.

Notes

  • For an even richer flavor, you can add a tablespoon of hoisin sauce to the marinade.
  • You can also swap the beef for chicken  for different variations of the dish.
  • If you prefer less sweetness, reduce the amount of brown sugar to suit your taste.