Stir the butter with a ladle until small peaks form. Mix in the sugar, egg and lemon zest one after the other. Mix the flour and raisins well and add gradually.
Using 2 teaspoons, cut off small heaps from the dough and place on a baking sheet lined with baking paper. Bake in the oven preheated to 200 ° C for about 15 minutes until golden brown.
Tip:
If you like, you can make a glaze from 50 g powdered sugar and 1 tablespoon lemon juice and coat the warm biscuits with it. But they also taste great without it.