In your blender add crushed ice can vary on amount if making less then a full blender. Add your vodka can add more if needed, add orange juice, and your ice cream. blend away and enjoy.
another variation is instead of adding orange juice and vanilla ice cream and orange sherbert and the ice to the vodka. and then there is also the standby. you can just always pour the vodka into a tall glass of ice and add some sprite and drink and enjoy.