To make Khao Tom Mad, the sticky rice is first boiled with a mixture of coconut milk and sugar in the same way that a risotto is cooked – slowly with the liquid added a little at a time until it’s absorbed. The rice has to be stirred constantly so that it doesn’t burn. Once the rice is cooked, it is molded into a little cake filled with banana and black beans. Finally, it is wrapped in a banana leaf and then steamed