Hunan beef is an easy stir-fry recipe packed with thinly sliced flank steak and veggies tossed in spicy homemade Hunan sauce. Make this classic takeout dish in one pan in under 30 minutes!
Make the sauce. Whisk together the sesame oil, beef broth, soy sauce, fish sauce, rice wine vinegar, honey, and chili paste. In a separate bowl, whisk together the cornstarch and water and then whisk it back into the sauce. Set aside.
Brown the meat. Heat 1 tablespoon vegetable oil over medium-high heat and add the steak. Season the meat with salt and saute for a minute or two or until golden brown on all sides. Remove the steak and set aside.
Saute the veggies. Add the rest of the oil to the pan, followed by the onion, garlic, the stalks of the broccolini, and the bell pepper. Saute for 3 minutes or until the broccolini is almost fork-tender, and then add the broccolini florets. Saute for 1 more minute.
Put it all together. Return the beef to the pan and pour in the sauce. Saute until the sauce has thickened and the beef is cooked to your liking.
Serve. Remove from heat and let it rest for 2 to 3 minutes before serving.