Place the self-raising flour in a bowl with the baking powder, caster sugar, eggs and melted butter. Beat with an electric whisk until smooth.
Fold in 2 small peeled, cored and chopped apples and 175g (6oz) fresh blueberries.
Grease a 20cm (8in) square cake tin and line with baking parchment. Spoon the mixture into the tin and bake for 1-1 1/4 hrs until golden and firm to the touch. Cool in the tin for 10 mins, then turn out and leave to cool completely.
Mix the icing sugar with 30-45ml (2-3tbsp) warm water to make a smooth icing. Spread over the cake. Leave until set, then cut into 12 squares.
Jessica Dady is Senior Content Editor at Goodto.com and has over 10 years of experience as a digital journalist, specialising in all things food, recipes, and SEO. From the best food hampers to cookbooks, from the best cake stands to baking sets, Jessica has a wealth of knowledge when it comes to must-have food products. A passionate baker, she spends much of her time creating celebration cakes for friends and family - particularly for her two lucky children.
Apple pie
