1 tsp lemon juice
300²µ/10½´Ç³ú small fresh strawberries, hulled and cut in half
2 tbsp strawberry jam
2 level tsp baking powder
225g/8oz caster sugar
icing sugar, for dusting
300²µ/10½´Ç³ú self-raising flour
1 tsp vanilla extract
225g/8oz butter, softened, or baking spread, plus extra for greasing
200ml/7fl oz full-fat crème fraîche
300³¾±ô/10½´Ç³ú double cream, whipped
4 free-range eggs
4 tbsp milk