Peel the prawns, leaving 4 whole, and use the shells to make the broth. Put the 12 peeled prawns in a bowl, sprinkle with the lime juice, lemon juice, salt and pepper and let marinate for about 2 hours.
Sauté the chopped garlic cloves in a little olive oil, add the rice, let it fry a little, water with the gin, let it evaporate, add the orange juice, some juniper berries and keep adding the broth, stirring once in a while until the rice is ready.
Meanwhile drain the prawns and sauté them in a frying pan with some olive oil.
Pour the prawns marinade into the rice.
Sprinkle with the citrus fruit glaze and serve it with the prawns.