1kg/2lb 4oz mixed plums (Victoria plums, yellow plums and greengages), quartered, stones removed
60²µ/2½´Ç³ú caster sugar
175g/6oz caster sugar
40²µ/1½´Ç³ú caster sugar
2 cinnamon sticks
175g/6oz self-raising flour
175g/6oz butter, softened
150ml/5fl oz double cream
3 free-range eggs
4 free-range egg yolks
150ml/5fl oz milk
40ml/1½fl oz plum liqueur