Lightly grease the back of 2 baking trays with butter.
Put all ingredients except the flour in a bowl and stir with the mixer or food processor for about 5 minutes until very frothy. Add the flour and knead everything into a dough.
Shape the dough into rolls approx. 1.5 cm in diameter, add a little flour if necessary, so that the dough does not stick.
Cut pieces of approx. 5 cm in length, round off both ends a little and cut the pieces with a sharp knife twice at an angle. Bend the Chräbeli a little so that the incisions open a little. Place on the trays and allow to dry at room temperature until an approx. 2 mm wide white border forms on the underside. Depending on the temperature and humidity, this can take 36 - 48 hours. The white border is important so that the Chräbeli get beautiful feet.
Preheat the oven to 140 degrees and bake the Chräbeli for 20-30 minutes with the oven door slightly open.
Note: If you want beautiful feet, you shouldn`t use baking paper.