2 tbsp apricot jam
150驳/5陆辞锄 plain flour
1陆 tsp bicarbonate of soda
175g/6oz light brown sugar
55g/2oz caster sugar
160驳/5戮辞锄 caster sugar
1 tbsp vanilla extract
1 tbsp white wine or spirit vinegar
50g/1戮oz melted butter, plus extra for greasing
80驳/2戮辞锄 butter
200ml/7fl oz double cream
2 free-range eggs
200ml/7fl oz milk (preferably full-fat)
100ml/3陆fl oz milk (preferably full-fat)
cream or ice cream, to serve (optional)