Vietnamese beef soup

Ingredients

• 4 lbs. beef soup bones.
• 1 white onion, unpeeled and cut in half.
• 5 slices fresh ginger.
• 1 Tbsp. salt.
• 1 Tbsp. of chicken bouillon.
• 2 pods star anise.
• 1 gal. water.
• 1 ½ lbs. beef top sirloin, thinly sliced.
• ½ cup chopped cilantro.
• 1 Tbsp. chopped green onion.
• 3 cups soy-bean sprouts.
• 1 bunch basil.
• 1 lime, cut into 4 wedges.
• Sriracha® sauce to taste (optional).