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Savor the Bold Flavors of Beef Black Pepper Udon

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Learn how to make delicious Beef Black Pepper Udon. Easy recipe with step-by-step instructions.

Ingredients

Scale

  • 12 oz (340 g) beef sirloin or flank steak, thinly sliced
  • 8 oz (225 g) udon noodles (fresh or frozen)
  • 2 tablespoons soy sauce
  • 1 tablespoon oyster sauce (optional, for extra richness)
  • 1 teaspoon sesame oil
  • 2 tablespoons vegetable oil or neutral cooking oil
  • 1 large onion, sliced thin
  • 3 cloves garlic, minced
  • 1 teaspoon freshly ground black pepper (adjust to taste)
  • 1 teaspoon ground white pepper (optional, for added aroma)
  • 1/2 teaspoon sugar (to balance the flavors)
  • 1/4 cup beef broth or water
  • Green onions, sliced, for garnish
  • Sesame seeds, for garnish (optional)

Feel free to customize this list—if you don’t have oyster sauce, a dash more soy works beautifully. I also like to add thinly sliced bell peppers or bok choy for extra crunch and color, especially when I want to turn this into a more veggie-forward dish. My grandma always believed in making the most of what you have on hand, so don’t hesitate to experiment a little!

Instructions

  1. Begin by preparing your ingredients. Thinly slice the beef across the grain for tenderness. If your udon noodles are frozen, cook them according to package instructions, then drain and set aside. Having everything prepped before you start makes the process smoother, especially when I’m juggling a busy day.
  2. In a small bowl, mix soy sauce, oyster sauce (if using), sesame oil, sugar, and beef broth. This will be your flavorful sauce base. I always taste the mixture first—just a quick dip of my finger—to ensure it’s balanced. It’s a little trick I learned from my grandma: always taste your sauce before adding it to the dish.
  3. Heat a wok or large skillet over medium-high heat. Add 1 tablespoon of vegetable oil. Once hot, add the sliced beef in a single layer, cooking until browned and just cooked through, about 2-3 minutes. Remove from the pan and set aside. Be careful not to overcrowd the pan—cooking in batches if needed helps keep the beef tender and juicy.
  4. In the same pan, add the remaining tablespoon of oil. Toss in the sliced onion and cook until it begins to soften, about 2 minutes. Add the minced garlic and cook for another 30 seconds until fragrant. My grandma used to say that garlic is the soul of any good stir-fry, and I’ve found that fresh garlic truly makes a difference.
  5. Return the cooked beef to the pan. Pour in your prepared sauce mixture and stir well to coat everything evenly. Add the cooked udon noodles to the pan, tossing gently to combine and heat through. It’s at this stage that I love to add a little more black pepper—adjust to your taste—because that’s what really makes this dish stand out.
  6. Cook everything together for another 2-3 minutes, allowing the flavors to meld. If the sauce seems too thick, splash in a little more beef broth or water. I often find that a quick taste test helps me decide if it needs a pinch more pepper or soy. Remember, a good stir-fry is all about balancing flavors—sweet, salty, and spicy.
  7. Remove from heat and garnish with sliced green onions and sesame seeds if you like. Serve hot, straight from the wok—there’s nothing quite like the aroma of freshly cooked Beef Black Pepper Udon to make everyone gather around the table.