Joy of Cooking's Guyanese Pepperpot

Name: Joy of Cooking's Guyanese Pepperpot
Cuisine: American
Ingredients: 3 lbs boneless stewing beef cube , such as chuck, brisket, or bottom round; 1 tsp salt; 1/2 tsp black pepper; 1 tbsp vegetable oil; 1 large onion , chopped; 4 garlic cloves , chopped; 1/2 cup cassareep , (see tips); 2 habanero peppers , or 3 to 4 wiri wiri peppers, left whole, or seeded and chopped; 2-in. piece ginger , peeled and minced; 3 tbsp brown sugar; 2 3-inch strips orange , zest, removed with a vegetable peeler; 4 sprigs thyme; 1 2-to 3-in. cinnamon sticks; 1/4 tsp allspice , (optional); 3 whole cloves