These cookies have a crispy exterior and a soft and chewy interior. The various flavours and textures (rich dark chocolate, chewy sour cherries, and sweet crisp toffee) combine to produce a deliciously addictive cookie. From Regan Daley's cookbook, "In The Sweet Kitchen: The Definitive Baker's Companion". If you are using cherries, make sure they are plump and soft. If you want smaller cookies, decrease baking time. Dough freezes very well. These are fabulously gooey when warm.