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Easy Tender Instant Pot Mongolian Beef Recipe for Perfect Weeknight Dinner

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A quick and flavorful Instant Pot Mongolian beef recipe featuring tender flank steak in a sweet-savory sauce, perfect for busy weeknights.

Ingredients

Scale
  • 1 pound flank steak, thinly sliced against the grain
  • 2 tablespoons vegetable oil
  • 3 cloves garlic, minced
  • 1 teaspoon fresh grated ginger
  • ½ cup soy sauce (120 ml)
  • ⅓ cup brown sugar (65 g), packed
  • ½ cup water or beef broth (120 ml)
  • 2 tablespoons cornstarch mixed with 2 tablespoons water (for thickening)
  • 3 stalks green onions, sliced thin
  • Red pepper flakes, optional pinch

Instructions

  1. Freeze the flank steak for about 20 minutes to firm up, then slice thinly across the grain into ¼-inch strips.
  2. Set Instant Pot to ‘Sauté’ mode and add 2 tablespoons vegetable oil. Brown beef strips in batches for about 2 minutes per batch, then remove and set aside.
  3. Add minced garlic and grated ginger to the pot and stir for about 30 seconds until fragrant.
  4. Pour in ½ cup soy sauce, ⅓ cup brown sugar, and ½ cup water or beef broth. Stir well to dissolve sugar and scrape browned bits from the bottom.
  5. Return the seared beef to the pot and stir gently to combine.
  6. Seal the lid and set Instant Pot to ‘Manual’ or ‘Pressure Cook’ on high for 8 minutes. Use quick release when done.
  7. Mix 2 tablespoons cornstarch with 2 tablespoons cold water to make a slurry. Switch Instant Pot to ‘Sauté’ and stir in slurry. Cook 2-3 minutes until sauce thickens and becomes glossy.
  8. Turn off the pot, garnish with sliced green onions and optional red pepper flakes, stir gently, and serve immediately over steamed rice or noodles.

Notes

Freeze flank steak slightly before slicing for easier thin cuts. Do not overcrowd the pot when searing beef to avoid steaming. Stir the cornstarch slurry into the sauce quickly and watch closely to avoid lumps or gluey texture. Quick release pressure to keep beef tender. Sauce thickness can be adjusted by simmering longer or adding a splash of water/broth.

Nutrition

Keywords: Instant Pot, Mongolian beef, quick dinner, tender beef, weeknight meal, easy recipe, pressure cooker, sweet and savory sauce

Find it online: https://chrisfeasts.com/easy-tender-instant-pot-mongolian-beef-recipe-for-perfect-weeknight-dinner/