This colorful stir-fry adapted from Grace Young's cookbook packs a nice spicy punch. I've found that trimmed chuck steak turns out excellently in stir-fries. Commonly used in braising, this inexpensive cut has enough intramuscular fat to stay tender in the hot wok.
1. Cut 12-16 ounces of beef into 1-inch cubes. In a medium bowl, combine 1 tsp. each of dark soy sauce and light soy sauce. Add the beef, stir to coat, and marinate while you prepare the other ingredients.
2. Thinly slice a bunch of garlic cloves and pull the stems off 6 red Thai chillis. Slice the whites of 8-10 scallions into 2-inch pieces and cut a few of the green sections into slivers for garnish.
3. In a small bowl, combine 2 T. hoisin sauce, 1 T. sambal olek, and 1 tsp. sesame oil.
4. Heat a wok over high and swirl in a bit of oil. Add the beef, spreading it evenly in the wok, and let it cook undisturbed for a minute to begin to brown. Then stir-fry the beef 1-2 minutes until just browned all over and transfer to a plate.
5. Wipe the wok with a paper towel and swirl in a bit more oil. Add the garlic and chillis and stir-fry a few seconds until fragrant. Add the scallion whites and stir-fry another minute. Return the beef to the wok, add the hoisin mixture and stir-fry 30 seconds. Turn onto a plate, garnish with the scallion greens, and serve with steamed rice.