Spicy Pork Vindaloo

Name: Spicy Pork Vindaloo
Ingredients: 1 kg pork tenderloin; 2 tablespoons ginger and garlic paste; 1 onion, finely chopped; 2 teaspoons ground coriander; 2 teaspoons red chilli flakes; 2 teaspoons turmeric powder; 2 teaspoons cumin powder; 1 tablespoon freshly ground black pepper; 2 teaspoons apple cider vinegar; 2 teaspoons vegetable oil; 2 teaspoon ground cloves; 2 teaspoons ground cinnamon; 1 tablespoon brown sugar; 1 tablespoon masala/curry powder; 600 ml freshly boiled water; to taste Salt