The traditional version is a white, vanilla flaovered cake that is infused with 3 types of milk--sweet milk, whole milk and cream. This chocolate version was published in Sabroso!, a southwest dining guide. The preparation time and cook time are estimates. When making a tres leches cake it is usually best to begin early in the morning or even the day before in order to have it ready in the evening. The process is lengthy and time consuming; but oh what wonderful results.