Rinse the black soybeans thoroughly and soak them overnight.
Boil the soaked black soybeans in boiling water for 10 minutes, then let them cool.
Boil almonds in boiling water for 5 minutes and peel off the skins.
Blend the cooked black soybeans, almonds, and water in a blender until smooth.
Strain through a sieve to remove any soybean and almond pulp.
Blend once more with a hand blender for extra smoothness.
Add honey or sugar to taste and mix well.
Store the well-mixed milk in the refrigerator and enjoy chilled.