Tempeh (/ˈtɛmpeɪ/ ; Javanese: tempe, [témpé]) tempe is a traditional soy product originally From. Indonesia it is made by a natural culturing and controlled fermentation process that binds soybeans into a cake, form similar to a very firm vegetarian burger. pattyempeh's fermentation process and its retention of the whole bean give it a higher content of protein, dietary fiber, and vitamins. It has a firm texture and an earthy flavor which becomes more pronounced as it ages.