Nici Wickes: Nectarine and Blueberry pie - Saturday Morning with Jack Tame

NECTARINE & BLUEBERRY PIE 
The combination of stonefruit and berries in a sweet pie is my idea of heaven. Before we know it berries and summerfruit will be done for the season so enjoy it while you can. 
Serves 6-8
2-3 sheets sweet short pastry
1 punnet blueberries
4 nectarines, de-stoned and roughly chopped
2 tbsp plain flour
2 tbsps caster sugar
2 tbsp lemon juice
50g butter, melted 
1 egg, lightly beaten, for glaze
Cream or yoghurt to serve