500g/1lb 2oz rhubarb (as red as possible), chopped into chunks
4 sprigs fresh rosemary, finely chopped
150²µ/5½´Ç³ú plain flour, plus extra for dusting
100²µ/3½´Ç³ú caster sugar
60²µ/2¼´Ç³ú caster sugar
2 cinnamon sticks
100²µ/3½´Ç³ú ground almonds
freshly grated nutmeg
150²µ/5½´Ç³ú cold unsalted butter, cubed, plus extra for greasing
600ml/20fl oz double cream
1 large egg yolk
4 large egg yolks
1 free-range egg, beaten for egg wash