Quince crumble

Quince filling

• 6 quinces (approx. 700g), peeled, cored and cut into quarters
• 1 tsp ground cinnamon
• 120 g white sugar
• 1 tsp natural vanilla extract

Crumble

• 120 g unsalted butter, chilled, cut into pieces , plus extra to grease
• 320 g plain flour
• 100 g white sugar
• 1 ½ tsp baking powder
• 1 pinch sea salt
• 1 egg