Crush peanuts in a food processor. Add corn starch, water and almond milk. Process again until smooth.
Transfer the mixture to a saucepan, heat over medium low heat and simmer stirring constantly until thickened.
Pour the mixture into a square container (wet inside of the container so that it is easier to take the peanuts tofu later) and let cool. When it has cooled, refrigerate for a couple of hours.
Make sauce. In a small microwave-safe bowl, combine soy sauce, granulated sugar and water. Microwave on high for about 20 seconds (just heat it up). Take the bowl out of the microwave and stir to melt sugar.
To serve, cut the peanut tofu into four. Put each peanut tofu into a serving plate and pour the sauce over the peanut tofu. Sprinkle minced scallions.
Recipe by Go Dairy Free at https://www.godairyfree.org/recipes/peanut-tofu-teriyaki