1. In a large mixing bowl, combine the
butter, sugar and 1 egg yolk. Stir until creamy and combine completely.
2. Add the flour and mix thoroughly. Form
the dough into one large ball and wrap it in aluminum foil. Put this in the
refrigerator for 30 minutes.
3. Unwrap the chilled dough and, with clean
hands, form small balls in the palms of your hand. These are the moon cakes.
4. Make a hole with your thumb gently in
the center of each moon cake and fill with about half a teaspoon of your
favorite jam or red bean paste.
5. Brush each cake with the other beaten
egg yolk.
6. Preheat the oven to 375 degrees. Bake
the moon cakes for about 20 minutes or just until the outside edges are
slightly brown. Makes about 24 moon cakes.