Preheat the oven to 150℃/140℃fan/Gas 2. Grease and line the base of a 15cm deep loose-based tin with baking paper.
Put all the ingredients in a mixer fitted with a paddle attachment. Start mixing at low speed to combine the ingredients, then increase the speed and mix for 1 minute until smooth and pale in colour. Pour into the tin and level the top.
Bake in the oven for 1 hour and 15 minutes. It should be lightly golden and spring back when gently pressed. Leave to cool in the tin for 5 minutes, then turn out onto a wire rack. Leave to cool completely.
Get your ingredients deliveredCheck out Ocado! Save 25% on your first order + 3 months free unlimited deliveries. Enter VOU7389477 at checkout