Pear, Ricotta and Walnut Crumble Cake

Grease a 20cm square cake tin and fully line with baking paper, bringing the paper 2cm up above the rim.

Preheat the oven to 160°C.

Crumble: Combine everything in a bowl and set aside.

Cake: Beat the eggs, sugar, vanilla and orange zest together until pale and fluffy. Gradually beat in the oil.

Combine the walnuts, both flours, baking powder and all the spices in a bowl and add the pears, tossing so each piece is coated in flour.

Tip onto the beaten eggs and use a large metal spoon to gently but thoroughly fold through, ensuring there are no pockets of flour in the batter.

Crumble over the ricotta, leaving it quite chunky, and fold in.

Tip into the cake tin and spread evenly.

Scatter the crumble over the top and bake for 40 minutes. Cover the top of the cake loosely with foil if it’s quite golden brown and bake for a further 20 minutes or until a skewer inserted into the centre comes out clean.

To serve: Cool completely before removing from the tin. Dust with icing sugar and serve with mascarpone and dulce de leche if desired. Makes 1 cake

Cook’s note: Buckwheat is the fruit of a plant related to rhubarb and sorrel and despite its name contains no gluten. It’s used to make Japanese soba noodles, blinis and crepes. With a rich, nutty, slightly earthy flavour, when used in baking it’s best combined with a regular gluten-free flour.