For passion fruit simple syrup combine ½ cup passion fruit pulp- juice and seeds (6-8 passion fruits) ½ cup water and 1 cup sugar in a sauce pan and place over medium heat. Stir until sugar is dissolved. Bring to a simmer then remove from heat. Strain into an airtight container or jar. Let cool completely before using. Keep refrigerated. Should last 2-3 weeks kept well chilled.