This recipe can easily be doubled, tripled, quadrupled or even octupled, just buy more tempeh and increase the marinade ingredients accordingly. Tempeh can be eaten as is, straight from the package. It’s fermented and no cooking at all is required. It can be marinated without simmering it first, but, to get maximum flavor and texture, it is best to simmer before marinating. The simmering makes it softer and more readily able to absorb the marinade. If you are in a wicked rush, you can skip this step, but the end result will not be nearly as good.