What you will need:1 cup soy yogurt1 cup dark brown sugar (we used Tate&Lyle Dark Brown Sugar)1 cup gluten-free flour1/4 cup oil1 tablespoon baking powderMix well all ingredients, pour into a baking pan and put in the oven, 200ºC for 1 hour. Check very often... it is hard to tell when it is finished. It should be hard on the outside and soft on the inside, without leaving any trace on a toothpick