Wash and stone the plums. Add the spices and sugar, shake a little. Let rest for 2 hours.
Bake in the oven for 2 - 3 hours (depending on the desired color of the puree) at 180 ° C, leave the oven ajar for the first 30 minutes (if you like more liquid puree, you can do without it) using a wooden spoon or similar . in the door.
Take the puree out of the oven and puree. Pour into hot-rinsed twist-off glasses and let them cool on your head.