Kupat tahu is a traditional dish consisting of ketupat (a type of rice cake) and tofu in peanut sauce. The ingredients usually include rice cakes, tofu, bean sprouts, chili peppers, peanuts, garlic, brown sugar, water, and kecap manis soy sauce.
The tofu is fried until golden brown, the bean sprouts are blanched, and the peanuts are fried, then combined with garlic, chili peppers, and water in order to create the peanut sauce, which is additionally mixed with brown sugar. The rice cakes, fried tofu, and bean sprouts are topped with the peanut sauce, and the dish is then drizzled with sweet soy sauce.