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30-Minute Mongolian Beef Recipe

4.9 from 144 reviews

This quick and flavorful 30-Minute Mongolian Beef recipe features tender sirloin steak coated in cornstarch and stir-fried to perfection with a savory, sweet, and slightly spicy sauce made from tamari or soy sauce, ginger, garlic, and brown sugar. It’s perfect for a weeknight dinner served over rice, noodles, or wrapped in lettuce for a lighter option.

Ingredients

Scale

Beef

  • pound 1-inch thick sirloin steak
  • 1/3 cup cornstarch
  • ¼ teaspoon salt

Sauce and Seasoning

  • ¼ cup canola oil
  • 1 tablespoon fresh grated ginger
  • 4 tablespoon garlic, minced
  • Red pepper flakes or chili oil, to taste
  • 1/3 cup reduced sodium tamari sauce (for gluten-free) or soy sauce
  • ½ cup water
  • 1/3 cup brown sugar

Garnish

  • 8 stalks scallions, green parts only, cut into 2 inch pieces

Instructions

  1. Prepare the steak: Slice the sirloin steak into ¼-inch thick slices. Lay the slices flat, cover with plastic wrap, and use a meat pounder or rolling pin to gently flatten each piece for uniform thickness.
  2. Coat the beef: Place the sliced steak into a large Ziploc bag. Add the cornstarch and massage gently to fully coat each piece of meat evenly. This will help create a crispy texture and thicken the sauce later.
  3. Heat the oil: Pour the canola oil into a large frying pan or skillet and heat over medium-high heat until shimmering but not smoking.
  4. Cook the steak: Add the coated steak slices in a single layer to the hot pan. Cook for 30 seconds on each side (a total of 1 minute). Avoid overcrowding by cooking in batches if necessary. Remove cooked steak to a plate and immediately sprinkle with salt.
  5. Sauté aromatics: Add grated ginger, minced garlic, and red pepper flakes or chili oil (optional for spice) to the pan. Sauté for 10-15 seconds until fragrant.
  6. Make the sauce: Pour tamari or soy sauce, water, and brown sugar into the pan with the aromatics. Stir and bring to a rapid boil to dissolve the sugar and meld flavors.
  7. Combine and thicken: Return the cooked steak to the pan. Stir it in and cook for 20-30 seconds to allow the cornstarch coating on the beef to thicken the sauce and glaze the meat.
  8. Finish and garnish: Turn off the heat. Add chopped green onions and stir gently to combine well without bruising the scallions.
  9. Serve: Serve the Mongolian beef immediately over steamed white rice, rice noodles, or wrapped in lettuce leaves for a fresh presentation.

Notes

  • You can substitute sirloin with flank or skirt steak, but slice against the grain for tenderness.
  • Adjust the spice level by adding more or less red pepper flakes or chili oil.
  • For gluten-free, use tamari sauce instead of soy sauce to avoid gluten.
  • Do not overcrowd the pan when frying beef to ensure proper searing and avoid steaming.
  • Leftover Mongolian beef can be stored in an airtight container in the fridge for up to 3 days.

Keywords: Mongolian beef, quick beef stir-fry, gluten-free Asian recipe, weeknight dinner, easy Chinese beef