1 teaspoon finely grated lemon rind, plus extra to decorate
100 g (3 1/2 oz) caster sugar
150 g (5 oz) plain flour
1 teaspoon ground ginger
1 teaspoon baking powder
1/2 teaspoon bicarbonate of soda
icing sugar, to decorate
Preheat the oven to 180°C (350°F), Gas Mark 4. Place all the ingredients in a large bowl and beat well until smooth.
Use the mixture to fill a 12-hole muffin tin lined with paper cases and bake in the preheated oven for 15–18 minutes, until risen and golden. Cool on a wire rack and serve warm or cold, decorated with a sprinkling of icing sugar and finely grated lemon rind.