Spread jam over half the sponge slices and sandwich together with another slice. Place in 6 individual glasses, cutting to fit. Spread any remaining jam over the top.
Place most of the lemon zest, all of the juice and sugar in a bowl. Pour in cider and mix until sugar has dissolved. Drizzle a little over sponges until just moist.
Whip cream to soft peaks then gradually whisk in cider mixture.
Spoon fruit over sponges and top with flavoured cream. Sprinkle on a little lemon zest and then chill for 1-2 hours before serving.