It's best to use fresh passionfruit pulp, but if you cannot find passionfruit, you can use the canned variety, which does not contain any seeds. To make passionfruit butter you will need a double boiler, which is a way of heating food gently.
Add base ingredients to a bowl and mix well to combine then press into a baking paper lined tray. Add the filling ingredients, except passion fruit and coconut to a food processor and blend to smooth. Add passion fruit and mix well to combine. Pour into the base (you can strain the seeds if you like through a sieve, I didn't because CBF).
Passion Fruit & Coconut Loaf Cake (Keto Friendly) Have your Keto Cake and eat it too. This Passion Fruit & Coconut Loaf Cake is outright delicious! It is low carb and rich in protein from the eggs and has a great source of good fats from the coconut oil and milk.
Mix together the passionfruit pulp, lemon juice, and eggs in a small mixing bowl. Add to the butter/sugar mixture and stir continuously with a wooden spoon, over medium-low heat, until the mixture thickens and coats the back of the spoon.