Step 1

Cut each passion fruit in half, taking care not to spill the juices out.

Step 2

With a spoon, scoop the passion fruit flesh and seeds into a blender.

Step 3

Add 3 cups water and close the blender lid. Set blender to the lowest setting and blend, at about 20 second intervals, until the flesh is pureed into a juice. The seeds will break, but be careful not to blend so much that they become finely ground.

Step 4

Pour the juice through a fine mesh sieve into a glass storage container/pitcher/jar and discard the seeds.

Step 5

Stir in as much water as you'd like to thin the juice.

Step 6

Whisk in stevia or agave to taste. Passion fruit is very tart, and some like it that way, while others prefer sweetening it up quite a bit.