Add all the ingredients for the bottom layer to a blender, and whizz until smooth. Spoon this mixture into the bottom of a glass or jar, and layer strawberries, passionfruit and chia seeds on top.
After rinsing the blender, add the ingredients for the second layer and blend until smooth. Add this to the glass, spooning in a thick layer on top of the first. Finish by topping with the remaining fruit and seeds. Enjoy!