Peanut Swirl

Whisk softened butter with sugar and salt.

Add egg and mix.

Add flour and knead (with hands).

Place in fridge for 1 hour.

Roll out the dough in rectangular form (on floured surface).

Spread peanut butter evenly and roll firmly.

Wrap in plastic film and place for 1 hour in freezer (in two halves).

Cut in slices (1/2 cm) and put on baking tray. (with baking paper)

Bake in preheated oven at 160° C for 15 minutes.