Grease a ~23cm bundt pan generously
Preheat oven to 170° celsius fanbake (190° regular bake)
Sieve the passionfruit to remove the seeds, pressing the passionfruit into the sieve with the back of a spoon to break up the pulp and release as much juice as possible.
Add the olive oil, eggs, salt, vanilla, greek yogurt, passionfruit juice to the sugar and whisk to fully combine
Sift over the self raising flour and whisk to just combine with no flour lumps remaining
Pour into prepared tin. Bake for 35-40 minutes or until skewer comes out just clean and it just bounces back to touch.
Cool in tin for 10 minutes then invert onto cooling rack. Cool completely if you have time before glazing - store in an airtight container once cool.
For the glaze: combine the sifted icing sugar and lemon juice until you get a thick white smooth paste consistency - not too runny or it will slide off the cake. Drip over the cake edges using the back of a spoon or an offset spatula.