Put the butter and sugar into a bowl and mix until pale and fluffy. I used my K Mix

Add the egg and vanilla and mix thoroughly

Add the flour and salt and mix again (I did all of this in the K Mix with the metal K attachment)

Chop the chocolate if you have a whole block, then add to the mixture. if you have bought chunks/chips just throw them into the mixture and mix through

Using a spoon take a heaped large teaspoon of the mix and using your hands rub them into a small ball (walnut shape)

Put on to a tray that has been greased and lined. Make sure to space them out as if the recipe works correctly they will spread out to form a cookie! I had two trays on the go, one in the oven and then I got another lot ready on the other tray whilst they were cooking and cooling. Cook for 7 mins for a chewy cookie. I think probably 10 mins would give you a crunchier cookie, but I did not try it as I mean why would you?

When you take the tray out do not attempt to take them off the tray for about 10 mins. Not only do they need to firm up, but also if you get any on your hand the chocolate is like molten lava! After 10 mins transfer to a cooling rack. If it's too tempting you are probably good to go after about 15 min of them coming out of the oven.

If you were clever and molded them whilst still warm over the bottom of a glass or something they would make great cookie basket for Ice cream!