Mincemeat trifle

Name: Mincemeat trifle
Ingredients: 250g/9oz butter; 250g/9oz caster sugar; 75g/2½oz ground almonds; 100g/3½oz plain flour; 4 large eggs, beaten; Organic or unwaxed orange, grated zest and juice; 100g/3½oz good quality mincemeat; 5 lemons, zest and juice; 1 orange, zest and juice; 150g/5½oz unsalted butter, cut into cubes; 300g/3½oz sugar; 4 eggs and 2 egg yolks; 2 tbsp marsala or dry sherry; 400ml/14fl oz ready-made custard; 300ml/10fl oz double cream; 20 physalis (cape gooseberries); Handful pistachios, shelled and chopped