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Export 14 ingredients for grocery delivery
Step 1
Preheat oven to 425 degrees F (220 degrees C).
Step 2
Place beef bones on a baking sheet and roast in the preheated oven until browned, about 1 hour.
Step 3
Place onion on a baking sheet and roast in the preheated oven until blackened and soft, about 45 minutes.
Step 4
Place bones, onion, ginger, salt, star anise, and fish sauce in a large stockpot and cover with 4 quarts of water. Bring to a boil and reduce heat to low. Simmer on low for 6 to 10 hours. Strain the broth into a saucepan and set aside.
Step 5
Place rice noodles in large bowl filled with room temperature water and allow to soak for 1 hour. Bring a large pot of water to a boil and after the noodles have soaked, place them in the boiling water for 1 minute. Bring stock to a simmer.
Step 6
Divide noodles among 4 serving bowls; top with sirloin, cilantro, and green onion. Pour hot broth over the top. Stir and let sit until the beef is partially cooked and no longer pink, 1 to 2 minutes. Serve with bean sprouts, Thai basil, lime wedges, hoisin sauce, and chile-garlic sauce on the side.