150g/5½oz frozen raspberries
300²µ/10½´Ç³ú plain flour
1½ tsp bicarbonate of soda
225g/8oz caster sugar
pinch of salt
5 tbsp sunflower oil
1 tsp vanilla extract or vanilla bean paste
100²µ/3½´Ç³ú white chocolate chips
3 free-range eggs, beaten
100ml/3½fl oz milk
100ml/3½fl oz soured cream