Place the butter in a small saucepan over a low heat. If you can, use a saucepan with a light coloured bottom, so you can see how the butter is browning. Stir and swirl intermittently for about 5 or so minutes, until the butter foams and then forms medium to dark brown flecks in the bottom of the pan. See the picture for reference on what colour the specks should be. Take it off the heat as soon as it’s done, because it will continue cooking.
