Put mulberries in a large clean jar and pour vodka on fruit until fruit is covered.

Cover jar tightly. Set in a cool, dark place for 1 month.

Strain the alcohol to remove all seeds, stems and fruit.

Pour strained mixture into a large glass jug or jar. Add the sugar and stir well.

Cover and store in a cool, dark place for 4 to 6 months, stirring everyday for the first 2 weeks.

After the 4 to 6 months are up, strain again into decorative bottles.