Ingredients

  • 125g/4oz dark chocolate
  • 150g/51/4oz plain flour
  • 30g/1oz cocoa, sifted
  • 1 tsp bicarbonate of soda
  • 1/2 tsp salt
  • 125g/4oz unsalted butter, softened
  • 75g/21/2oz light brown sugar
  • 50g/2oz caster sugar
  • 1 tsp vanilla extract
  • 1 free-range egg, cold from the fridge
  • 350g/121/4oz dark chocolate chips

Method

  • Method
  • 1. Preheat the oven to 170C/325F/Gas 3.
  • 2. Break the 125g/4oz dark chocolate into pieces and place into a heatproof bowl set over a pan of barely simmering water. Heat, stirring occasionally, until melted.
  • 3. Place the flour, cocoa, bicarbonate of soda and salt into a large bowl and mix well.
  • 4. In another bowl, cream the butter and two sugars together until light and fluffy. Add the melted chocolate and stir well.
  • 5. Beat in the vanilla extract and crack in the egg, then mix in the dry ingredients. Finally stir in the chocolate chips.
  • 6. Scoop out 12 equal portions of the mixture - an ice cream scoop and a palette knife are the best tools for the job - and place onto a lined baking sheet about 6cm/21/2in apart. Do not flatten them.
  • 7. Transfer to the oven and bake for 18 minutes, then test with a skewer - it should come out semi-clean and not wet with batter. If you pierce a chocolate chip, try again.
  • 8. Leave the cookies to cool on the baking sheet for 4-5 minutes, then transfer them to a cooling rack to harden as they cool.