350g (12oz) Plain Flour
1 teaspoon Bicarbonate of Soda
1 teaspoon Baking Powder
250g (9oz) unsalted butter, softened
300g (10oz) caster sugar
1 egg, beaten
1 teaspoon Vanilla Extract
160g (6oz) Smarties (or chocolate M&Ms, or chocolate chunks if you wish)
Pinch of salt
1. Heat oven to 180C (350F)
2. Cream together the butter and sugar until pale and fluffy, then beat in the egg and vanilla.
3. Sift the flour, bicarbonate of soda, baking powder and salt and gradually beat into the butter mixture to form a stiff dough.
4. Roll the dough into 20 balls, then place on ungreased baking trays, spaced well apart. Press several smarties into each ball, flattening it slightly. Bake for 14 minutes.
5. Leave on trays for 2 minutes to firm up slightly, then cool on a wire rack.