Make the Marinade: Heat the rendered fat or vegetable oil in a sauce pan and add the spices. Stir the spices over medium heat for 1 minute. Remove from the heat and stir the spices into the yogurt in a small bowl. Add lemon juice, garlic, ginger.
Deeply score the turkey drum- about ½ inch deep on both sides. Season the drum with salt and black pepper and then coat with the marinade. Marinate in the fridge for at least 4 hours but no more than 6 hours.
Before roasting remove excess marinade from the drum and let it come to room temperature.
Preheat the oven to 400 degrees. Roast the drum on parchment or butcher paper lined sheet pan for about 35-40 minutes or until the internal temperature is 160 degrees. If the drum is getting too dark, tent with foil about halfway through the cooking time.