Beef And Tendon Hot Pot

Name: Beef And Tendon Hot Pot
Ingredients: 1 tablespoon olive oil; 1 kg beef brisked, trimmed of excess fat, cut into large chunks; 1 tablespoon szechuan peppercorns, crushed; salt, to season; 1 onion, sliced; 3 cloves garlic, chopped; 1 teaspoon chilli flakes; 3 tablespoons tomato paste; 1 cup red wine; 500g beef tendons, optional; 500ml beef stock; 2 star anise; 2 strips orange zest; 2 bay leaves