How to cook
Take out the butter and leave it at room temperature to relax and soften.
Cut it into cubes in a large bowl. Add the remaining products and knead a soft dough.
Wrap it in cling film and refrigerate it for 15-20 minutes.
Take it out and fill the a piping bag for sweets.
Pipe them out onto a tray lined with baking paper at a distance.
Bake biscuits in a preheated oven at 340°F (170°C) for 20 minutes.
Sprinkle the cooled plain tea biscuits with powdered sugar.