2 average sized English cucumbers will give you about 16 oz of juice. You can make 10-12 cocktails with this much juice.
Make sure to use the juice within 24 hours or freeze to use later.
To Make Cucumber Juice:
Wash and dry the cucumbers. Cut off the tips and then chop the cucumber into thick slices.
Place chopped cucumbers into the blender and blend until completely pureed, no cucumber chunks remain.
Fit a mesh vegetable bag over a strainer (to hold it better). Place the strainer over a measuring cup or another container and the pour the blended cucumbers into the bag.
Strain and squeeze the juice out as much as you can. Discard the pulp leftover in the bag. Use the cucumber juice right away or within 24 hours. If you want to store it longer, make sure to freeze it.
Cucumber Cocktail:
Combine all of the ingredients for the cucumber cocktail in a cocktail shaker and add some ice.
Close the shaker and vigorously shake for a few seconds.
Add some ice to the glass and pour the cucumber cocktail into the glass through the strainer.ORIf you like to keep the "dirty ice" (i.e. the ice that is in the shaker when shaking the cocktail), you can pour in the entire content of the cocktail shaker into the glass instead of using fresh ice in the glass. Make sure to use just enough ice to shake the cocktail that will fit into the glass.