Preheat the oven to 180C(356F) fan-forced. Either line a 12-hole muffin tin with cupcake cases, grease a friand tin, or get your 12-hole silicone muffin tin out (no need to grease it I found).
Place the egg whites in the bowl of an electric mixer and whip until stiff.
Take the bowl off the stand and use a spatula to fold in the butter, almond meal, sifted icing sugar and flour until just combined.
Fold through the passionfruit pulp and then the chopped white chocolate.
Divide the mixture between the cases and sprinkle the top of each one with a couple of flaked almonds.
Bake for 20-25 minutes or until a cake tester inserted in the middle comes out clean.
Transfer to a wire rack to cool completely and dust with icing sugar to serve.
Pour mixture into friands pan or cupcake cases, bake 25 minutes. Dust with icing sugar when the cake is cool.