Double Chocolate Crunch Cookies

Makes 24 cookies

  1. Break or chop up the chocolate into small, even-sized pieces and put into a heatproof bowl.
  2. Add the butter, then set the bowl over a pan of steaming hot, but not boiling, water and melt gently.
  3. Remove the bowl from the pan and stir until the mixture is smooth.
  4. Allow to cool until barely warm, stirring occasionally so the mixture maintains an even temperature.
  5. Meanwhile, put the eggs, sugar, and vanilla into a mixing bowl.
  6. Whisk with an electric mixer for about 2 minutes until thick and frothy.
  7. Stir in the chocolate mixture using a plastic spatula or metal spoon.
  8. When thoroughly combined, sift in the flour and baking powder into the bowl and stir in.
  9. When you can no longer see any streaks of flour, gently stir in the cornflakes.
  10. Cover the bowl and chill for 1 hour.
  11. Towards the end of the chilling time, heat your oven to 325°F.
  12. Scoop up a rounded tablespoon of the cookie mixture and using a teaspoon, push it on to a lined baking sheet.
  13. Repeat with the rest of the mixture, spacing the heaps well apart to allow for spreading.
  14. Gently flatten each heap with your fingers to make a rough, craggy cookie about 6 cm 2 inches across.
  15. Bake in the heated oven for about 12 minutes until the cookies look cracked and almost cooked.
  16. Remove the sheets from the oven and set on a heatproof surface.
  17. Quickly press a chocolate button into the center of each cookie.
  18. Return them to the oven and bake for a further 2 minutes.
  19. Transfer the sheets to the heatproof surface again and leave for 10 minutes to allow the cookies to firm up a bit.
  20. Transfer them to a wire rack to cool completely.
  21. Store in an airtight container for about 5 days.

Collister, Linda. The Great British Bake Off Big Book of Baking. Page 27. BBC Books, 2014.