I didn't use any particular recipe for the filling. I bought some mixed nuts and fruits from the organic store. I simply toasted and chopped nuts(100g) and mixed with toasted melon seed(25g) and sesame(2tbsp), chopped mixed fruits(50g) and orange peel(10g) together. Mix honey(2tbsp), water(about 15g), salt(1/4tsp), sugar(1tbsp), oil(about 2 1/2tbsp) and cooked glutinous rice flour(about 25g) together. Pour the honey mixture into the dry ingredients and mix well. Cover and chill in the fridge for an hour then weigh 30g each and shape into balls(about 12 fillings) and it ready to use.