1
Pat the steaks dry and coat in oil and salt. Heat a large skillet or grill to high heat. When hot, add the steaks and sear well on each side, about 3 minutes. Lower the heat to medium and cook until an instant-read thermometer reaches 130°F for rare, 140°F for medium rare and 150°F for medium-well.
2
Remove the steaks from the pan and rest for 5-10 minutes before slicing very thin.
3
Place the noodles in a large bowl and cover with boiling water. Soak for 10 minutes, until tender, then drain and rinse the noodles under cold water.
4
Heat the beef broth to a bare simmer in a medium saucepan.
5
Divide the cooked noodles between bowls, cover with warm broth and top with sliced steak, herbs, lime wedges, jalapeño slices, bean sprouts and onion. Stir in hoisin sauce and/or sriracha if you like.