A quick and flavorful spicy beef and broccoli stir fry made with tender beef strips, crisp broccoli florets, and a savory, spicy sauce. Perfect for a satisfying weeknight dinner.
1 pound beef sirloin, thinly sliced against the grain
4 cups broccoli florets
3 tablespoons vegetable oil, divided
4 cloves garlic, minced
1 tablespoon fresh ginger, minced
1/4 cup low sodium soy sauce
2 tablespoons oyster sauce
1 tablespoon cornstarch
1/4 cup water
1 tablespoon brown sugar
1 teaspoon crushed red pepper flakes
1 teaspoon sesame oil
2 green onions, sliced thinly
In a small bowl, whisk together soy sauce, oyster sauce, cornstarch, water, brown sugar, crushed red pepper flakes, and sesame oil until smooth. Set aside.
Heat 2 tablespoons of vegetable oil in a large skillet or wok over medium-high heat.
Add the sliced beef to the skillet and stir-fry for 3-4 minutes until browned but not fully cooked. Remove beef from skillet and set aside.
Add the remaining 1 tablespoon of vegetable oil to the skillet.
Add the minced garlic and ginger and stir-fry for 30 seconds until fragrant.
Add the broccoli florets and stir-fry for 4-5 minutes until they are bright green and tender-crisp.
Return the beef to the skillet with the broccoli.
Pour the prepared sauce over the beef and broccoli mixture.
Stir well and cook for another 2-3 minutes until the sauce thickens and the beef is cooked through.
Remove from heat and garnish with sliced green onions.
Serve immediately over steamed rice or noodles.