450g/1lb plain flour, plus extra for dusting
100驳/3陆辞锄 caster sugar
glac茅 cherries, halved, or sugared gem sweets
250g/9oz icing sugar
陆 tsp vanilla extract
250g/9oz butter, at room temperature
1 free-range egg
3 tbsp full-fat milk (optional)
Scottish raspberry jam, for spreading