Beat the egg replacer with the water, and add milk and passionfruit, stirring well.
In a mixer, beat the sugar and butter until creamy. Then add the milk and flour in small portions, alternating until you've added all.
Add vanilla at the end, and bake for 15-20 minutes.
*The baking time can vary from oven to oven, so check the cupcakes after 10 minutes. If a knife comes out clean after you stick it in one of the cupcakes, it means they are ready. If not, keep baking, and check every 5 minutes until done.
For the frosting:
Mix the vegan butter in a mixer, until creamy, and start adding lucuma flour and sugar little by little. Add the vanilla and mix well to incorporate.
Notes
*Other good combinations with the lucuma frosting are chocolate or vanilla cupcakes.
Recipe by PERU DELIGHTS at https://perudelights.com/meatlessmondays-vegan-passionfruit-cupcakes-with-lucuma-frosting-by-the-house-of-v/