Instant Pot Ramen (Pork Ramen)

Name: Instant Pot Ramen (Pork Ramen)
Prep time: 10 min
Cook time: 1 h 15 min
Total time: 1 h 25 min
Cuisine: Asian, Japanese
Ingredients: 2 pounds pork shoulder/butt; 2 tablespoons cooking oil; 4 cups chicken broth; 2 cups water; 1 teaspoon dashi powder; 1/4 cup sake; 1 tablespoon fish sauce; 1/2 cup soy sauce; 1 teaspoon black pepper; 1 tablespoon chili garlic sauce; 1/4 cup rice wine vinegar (unseasoned); 1/2 cup brown sugar; 3 tablespoons dark soy sauce; 4 packages ramen noodles; 4-8 slices braised pork belly ((optional but recommended)); 6 ramen eggs ((optional but recommended)); 1 cup sliced green onions; Crispy garlic and/or shallots (for garnish (optional)); Sesame seeds (for garnish (optional))