Preheat oven to 180C/160C fan forced. Grease twelve 125ml (1⁄2 cup) friand pans.
Process the pistachios in a food processor until finely chopped. Transfer to a large bowl. Sift over the icing sugar mixture and flour. Add the almond meal, chocolate, cherries and lemon rind. Stir to combine. Make a well in the centre. Add the egg whites and butter. Stir until just combined.
Spoon mixture into prepared pans. Bake for 20-25 minutes or until a skewer inserted into the centre of a friand comes out clean. Allow to stand in the pan for 5 minutes. Transfer to a wire rack to cool completely.
For the glaze, sift the icing sugar and cocoa powder into a bowl. Make a well in the centre. Place the juice and chocolate in a small microwave-safe bowl. Microwave on Medium-High for 30 seconds or until melted and smooth. Add to the well. Stir until smooth. Drizzle over the friands. Set aside to set.