Step 1Thoroughly rinse the black beans in cold water, taking care to remove any debris. Place the beans in a pot and cover with the water. Bring to a boil and simmer until the beans have softened slightly and the water is reduced drastically, about 50 minutes. If there is too much water, cook the beans uncovered a little longer.
Step 2Add the sugar, stirring until it has dissolved. Then add the soy sauce and simmer an additional 10 minutes. Add the malt syrup and stir to combine.
Step 3Chill the beans at least 30 minutes, then serve them sprinkled with sesame seeds.