How to make German pork knuckle

You often have friends coming to your house, but you always take them out to eat. Isn't this very impolite? What's more, it would be healthier if you could eat it at home. So, for the sake of friendship and health, you have to master some cooking skills. So, let me teach you how to make a German pork trotter.

You may not have cooked before, but now that you have read the introduction to the recipe of German pork knuckle, you can try it yourself and develop your interest and affection.