For this dish, you will need 1 whole chicken with skin, cleaned, along with 1 tablespoon of black peppercorns (crushed), 1–2 tablespoons of olive oil, 2 teaspoons of Kashmiri red chilli powder, 1/2 teaspoon of spicy chilli flakes, 3 teaspoons of mustard paste, 10–12 cloves of minced garlic, the juice of 3 lemons, and salt to taste.