• 1 kg (2 lb 4 oz) granny smith apples, peeled, quartered, cores removed, cut into very thin slices

Lightly grease the slow cooker. In a bowl, combine the apples with the mixed spice, then evenly layer them in the slow cooker.

Using an electric mixer, beat the eggs and sugar until pale and thick, then beat in the coconut oil, syrup and vanilla seeds until combined. Using a spatula or large metal spoon, gently fold in the flour, followed by the blueberries.

Pour the batter over