Beef Pho

Name: Beef Pho
Prep time: 15 min
Cook time: 2 h
Total time: 2 h 15 min
Cuisine: Asian
Ingredients: 2 beef shanks with meat on them (about 2 1/4 pounds total); 3 large yellow onions, halved; 1 6-inch piece ginger, halved lengthwise; 1 head garlic, halved crosswise; 2 tablespoons vegetable oil; Kosher salt; 2 cinnamon sticks; 4 star anise pods; 3 tablespoons black peppercorns; 3 quarts low-sodium beef broth; 1/3 cup fish sauce; 1 pound flat rice noodles; 8 ounces deli-sliced roast beef, torn into pieces; 4 cups bean sprouts; 1 large bunch Thai basil or mint, leaves torn; 2 jalapeno peppers (red and/or green), thinly sliced; 1 large red onion, thinly sliced; Hoisin sauce and/or Sriracha (Asian chile sauce), for serving