Celebratory Lamb Biryani Recipe

Name: Celebratory Lamb Biryani Recipe
Ingredients: 2 large onions, divided; 3 garlic cloves, finely chopped; 1 inch fresh ginger, finely chopped; 5 tablespoons slivered almonds, divided; 5 tablespoons ghee, divided; Salt and pepper, to taste; 2 pounds lamb shoulder, chopped; 1 tablespoon garam masala; 1 large cinnamon stick; 4 cardamom pods; 1 teaspoon cumin seeds; 6 cloves; 2 bay leaves; ½ teaspoon ground coriander; 3 cups lamb stock, hot; 1 teaspoon saffron threads; ⅓ cup whole milk, warmed; 1 pound basmati rice; ¾ cup plain yogurt; 4 tablespoons dried cranberries, to serve