Mooncake skin: Combine Old Fashioned Rolled Oats (60 gram), Multigrain Flour (60 gram), Vegetable Oil (1/2 tablespoon) and Water (50 milliliter) together in a boil. Knead well to form a dough and divide in 10 - 12 small balls.
Filling: In another bowl combine Unsweetened Cocoa Powder (80 gram), Assorted Nuts (60 gram) and Water (28 milliliter), knead well and divide into 10-12 small balls.
Fill dough with filling and shape using mooncake mould - grease a little oil in the mould before moulding.
Then store the mooncakes in the refrigerator for at least one hour before consuming. Enjoy!