Filipino Peanut Stew

Name: Filipino Peanut Stew
Cuisine: Asian
Ingredients: For the Stew; 500g oxtail, cut into serving pieces (or beef shank as an alternative); 200g tripe, cleaned and boiled (optional); 1 medium eggplant, sliced; 1 bunch string beans, trimmed to 2-inch pieces; 1 bunch bok choy, separated into stalks; 1 banana heart (optional), sliced into wedges; 1 medium onion, diced; 4 cloves garlic, minced; 1 tbsp annatto powder (for colouring); 3 cups beef broth (reserved from boiling the meat); 1 cup unsweetened peanut butter; 2 tbsp ground toasted rice; 1 tbsp fish sauce (patis); Salt and pepper to taste; Bagoong (fermented shrimp paste), sautéed