• 100g/4oz soft butter or margarine
• 1 teaspoon bicarbonat

Preheat your oven to 180°C/350°F/gas mark 4 and have ready an ungreased baking sheet.

In a large bowl, combine the butter, bicarbonate of soda, cardamom and salt. Gradually blend in the sugar, then beat in the egg. Use a handheld electric whisk if you have one.

Into a s