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Slow Cooker Mongolian Beef

Slow Cooker Mongolian Beef

Slow Cooker Mongolian Beef is a hands-off, flavor-packed dish featuring tender beef cooked low and slow in a savory-sweet soy, brown sugar, and ginger sauce. Perfect for busy weeknights or feeding a crowd, this recipe transforms simple ingredients into a delicious, restaurant-quality meal that pairs beautifully with rice, noodles, or steamed vegetables.

Ingredients

Scale

Protein

  • 1.5 lbs thinly sliced flank or sirloin steak

Sauce

  • 1/2 cup soy sauce (or tamari/coconut aminos for gluten-free)
  • 1/2 cup brown sugar
  • 3 cloves garlic, minced
  • 1 tablespoon fresh grated ginger

Additional Ingredients

  • 1/2 cup water or broth
  • 2 teaspoons cornstarch
  • 2 teaspoons cold water (to mix with cornstarch)
  • 4 green onions, chopped (reserve some for garnish)

Instructions

  1. Prep the beef: Thinly slice your beef against the grain to ensure tenderness after cooking. Set aside while preparing the sauce.
  2. Mix the sauce: In a bowl, combine soy sauce, brown sugar, minced garlic, and grated fresh ginger. Stir until the sugar dissolves completely, creating a sweet and savory marinade.
  3. Combine ingredients in slow cooker: Place the sliced beef into the slow cooker. Pour the sauce mixture over the beef and add a splash of water or broth to keep it moist. Reserve some green onions for garnish.
  4. Cook low and slow: Cover and cook on low for 4 to 6 hours, or until the beef is tender and fully absorbed the sauce. Avoid opening the lid frequently to maintain heat consistency.
  5. Thicken the sauce: About 20 minutes before serving, mix cornstarch with cold water to make a slurry. Stir this into the slow cooker and switch the heat to high to thicken the sauce into a glossy glaze.
  6. Garnish and serve: Sprinkle the reserved green onions over the top and serve hot over steamed rice or noodles for a complete meal.

Notes

  • Slice beef thinly and against the grain for maximum tenderness.
  • Use fresh garlic and ginger rather than powders for better flavor.
  • Keep the slow cooker lid closed during cooking to maintain steady temperature.
  • Adjust sugar levels to taste before cooking for your preferred sweetness.
  • Add the cornstarch slurry toward the end to avoid a gummy sauce texture.

Nutrition

Keywords: Mongolian Beef, Slow Cooker, Beef Recipe, Asian Beef, Easy Dinner, Gluten Free, Weeknight Meal