Keep a bowl ready to collect the fruit pulp and another to collect the shells. Cut the passion fruits into two.
Scoop out the pulp with the seeds with a spoon and collect in the prepared bowl. Discard the shells.
Place the fruit pulp with seeds into a blender jar. *See notesAdd water and sugar.
Blend to a smooth juice.
Take a fine strainer and strain your juice. That way the seed pieces will be collected.
Pour the juice into a glass and serve with ice cooled.
Video
Notes
You can add sugar, you don't have to. I add some sugar because I used yellow passion fruits and those are sourer (see in post for more info)
You can strain your pulp or juice from the seeds, you don't have to. The seeds are actually nice crunchy and can add texture. I choose to add the seeds to the blender and to strain them afterward because it's fast and easier to strain them that way. Straining through the thick pulp can be time-consuming and you might end up wasting some pulp.