Mix yolk, margarine, icing sugar using a medium speed of a mixer until the mixture is soft and well blended. Turn off the mixer.

Add in water, flour, corn starch and vanilla sugar. Mix well using wooden spoon or washed hand

Spoon batter and make balls, flattened the balls, place 1/2 teaspoon

of apricot jam in the middle and form the whole ball as before.

Brush top of each balls with white egg.

Bake in 350 F for 15-20 minutes or until golden brown, but do not over bake it.