Beat the butter and sugar together then whisk with the syrup, vanilla and custard powder until pale and fluffy. Sandwich the biscuits with the filling. Place the teabags, zest of lemon ...
lemon curd and custard make this trifle irresistible. Sprinkle with pistachios to finish. Preheat the oven to 180C/160C Fan/Gas 4 and line a 15x20cm/6x8in cake tin with baking paper. Alternatively ...