1 tsp lemon juice
strawberry jam
1陆 tsp baking powder
50驳/1戮辞锄 caster sugar, plus extra for dusting
pinch salt
350g/12oz gluten-free self-raising flour, plus extra for rolling out
50驳/1戮辞锄 sultanas (optional)
100g/3陆oz unsalted butter, chilled and diced
clotted cream
175ml/6fl oz full-fat milk, plus 1 tablespoon for glazing