In a baking bowl, stir the powdered sugar with the milk until smooth. Add the juice of one lemon, the vanilla pod cut lengthwise and the alcohol. Pour this mixture into a large glass bottle and place it in the window for 8 to 14 days.
Then filter and pour into a new bottle form.
Our tip: If you like to cook with fresh herbs, it is best to get kitchen herbs in pots – so you always have everything ready!