Uses of dittany of Crete (origanum dictamnus)
In Greece we use diktamo mostly for tea, as beverage.
You can try it by boiling water in a jar and put 5-10gr diktamo for 5-10 minutes.
Other uses as any other tea leaves. For example you can boil milk or 35% milk cream  and put diktamo and then use the milk or cream to make pastry cream or ganache or any other similar.