Bring 3 1/2 cups/875 ml water to a boil in a large saucepan and salt it. Pour in the couscous and the olive oil, give a quick stir, cover and turn off the heat. Let sit for about 5 minutes. Fluff with a fork to break up any lumps. Check the seasonings, stir in the chopped mint and serve.
Recipe courtesy of Laura Calder