30-Minute Mongolian Beef

A savory and slightly sweet Mongolian-style beef dish that comes together in just 30 minutes. Thin slices of beef cooked in a flavorful sauce of soy, garlic, and ginger. Perfect over rice or noodles.

Ingredients

  • 1 lb (≈ 450 g) flank steak or sirloin, thinly sliced against the grain
  • 2 tablespoons cornstarch
  • Salt and black pepper, to taste
  • 2 tablespoons vegetable oil
  • 3 cloves garlic, minced
  • 1 tablespoon fresh ginger, minced
  • ½ cup low-sodium soy sauce
  • ⅓ cup water
  • ⅓ cup brown sugar
  • 2 green onions (scallions), sliced (for garnish)
  • Optional: red pepper flakes or chili for heat

Instructions

  1. Toss the beef slices with cornstarch, salt, and pepper until evenly coated. Shake off excess.
  2. Heat oil in a large skillet or wok over medium-high heat. Add the beef in a single layer. Cook until browned, about 2 minutes per side. Remove and set aside.
  3. In the same pan, reduce heat slightly and add garlic and ginger. Stir for 30 seconds until fragrant.
  4. Mix soy sauce, water, and brown sugar in a bowl. Pour into the pan, stirring to combine with garlic and ginger.</li
  5. Return the beef to the skillet and toss in the sauce. Cook 1–2 more minutes until sauce thickens and coats the meat.
  6. Garnish with sliced green onions (and red pepper flakes if desired). Serve over steamed rice or noodles.

Tip: For best texture, slice the beef thinly while it’s slightly frozen. Don’t overcrowd the pan—work in batches if needed.