Recipes: Pressure cooker oxtail soup

Preparation:  Preparation time: 5 min Cooking time: 1 hr Serving: 4 Ingredients: Pressure cooker (Instant Pot) ●     3 lbs (1.4 kg) oxtails , separated at the joints ●     4 cups vegetable stock (or beef stock) (*Footnote 1) ●     1/2 onion , coarsely chopped ●     1/2 thumb ginger, sliced ●     1...