The recipe is from a friend who is trying to sabotage my christmas party dress diet...
To make the dough mix 1/2 cup soft butter, 1/2 cup peanut butter, 1/2 cup white sugar, 1/2 cup brown sugar, seeds of 1/2 vanilla pod and 1 egg yolk.
Then mix in 1 and 1/4 cups of flour, 1/4 teaspoon salt and 3/4 teaspoon bicarbonate of soda.
Knead the mix into a dough and form little balls. Dip the balls in sugar (optional but recommended) and flatten a little with a fork.
Bake in the preheated oven at 190C for about 10-12 minutes and initially leave to cool on the baking tray as they are very soft when coming out of the oven.
Don't eat all at once!