Wash and soak the cow heel in 1 cup of white vinegar and some water. Let it soak until you are ready to cook.
Cut the beef roast into 2 inch cubes and season the beef and neck bones with about 1 teaspoon of salt and 1/2 teaspoon of black pepper then set aside.
Add a sauté pan to medium heat, then add the oil. When the oil is hot add the cubed beef roast and cook until all sides are brown, then remove from heat and set aside.
Next, add the beef neck bones and sear on both sides, then remove from heat and set aside.
To the sauté pan add 3 cups of water, to deglaze the pan. Use a wooden spoon to scrape up any beef bits from the bottom of the pan. Then add the garlic, cassareep, brown sugar, cinnamon, cloves, onion powder, cayenne pepper, wiri wiri pepper and 1 tablespoon of salt.
Let the sauce come up to a boil to bring the flavors together, then remove it from the heat.
Remove the cow heel from the vinegar and water mixture and rinse clean with fresh water. Then add the cow heel to the bottom of your slow cooker and sprinkle about 1/2 teaspoon of salt over the cow heel.
Add the neck bones to the slow cooker, followed by the cubed beef then pour the sauce over the meats. Cover and let cook on the lowest setting on the slow cooker for at least 8 hours.
When the pepperpot is done cooking, skim some of the oil/fat from the top of the pepperpot before enjoying with some homemade plait bread.