3 large beetroots
plain flour, for dusting
70²µ/2½´Ç³ú caster sugar
rock salt
70²µ/2½´Ç³ú unsalted butter, softened
150g/5½oz soft goats’ cheese, crumbled
50ml/2fl oz double cream
50²µ/1¾´Ç³ú crème fraîche
1 free-range egg, lightly beaten
200g/7oz puff pastry