Trifle sponges 4, about 110g (4oz), broken into pieces
Strawberries 350g (12oz), sliced
Caster sugar 2 tbsp
Pimms 4 tbsp
Reduced fat custard 425g can
Double cream 200ml (7fl oz)
Low fat natural yogurt 150g (5oz)
Orange, grated rind of half
Lemon, grated rind of half
Halved strawberries and orange rind curls to decorate