Peel and slice the onions. Put the Nürnberger in a roasting tube or a baking dish with a lid.
Cover with the onions (layer them if necessary) and sprinkle with the spices to taste. Since I like onions very much, we like to have more and every layer of onions is seasoned.
Close the roasting tube or pan and place in the oven at 180 ° C (fan-assisted air) for about 30 - 45 minutes.
My children prefer to eat mashed potatoes and sweet carrots with them.