Cut the pomegranates in half and scoop out the seeds using a teaspoon and remove the white membrane around the seeds.
Place the couscous in a bowl. Pour the boiling stock or water onto the couscous and and mix in the olive oil and lemon juice. Season with sea salt and freshly ground black pepper.
Cover tightly with plastic wrap and allow the couscous to sit in a warm place for 5-10 minutes, or until the liquid has been absorbed. Remove the plastic and fluff the grains with a fork. Allow the couscous to cool completely.
Stir the chopped mint and pomegranate seeds into the couscous. Add more olive oil, salt, pepper and mint to taste.