There are many Schnitzel recipes also depending on regions it can be different. I would presume a Putenschnitzel to be made with cream and mushrooms and served with spätzle.
But as you said you were in Hanau which is in Hesse I found this local recipe its made with pork meat though but was that the Schnitzel you are looking for its called Schmandschnitzel?
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Here is the translated recipe:
We bought pork cutlets, pounded them properly and salted them. Then we rolled each one individually first in flour, then through a whisked, salted, peppered egg and finally turned in breadcrumbs. Then we fried it in a hot pan with clarified butter, about four minutes on each side.
For the fried potatoes, we pre-cooked the potatoes. We then sautéed a chopped onion and a portion of bacon cubes in a pan, set them aside briefly, and then sautéed the precooked potatoes in the pan, finally folding the bacon and onions back in.
The special thing about the schnitzel is the Hessian sour cream sauce. For this, two onions were sautéed with a package of bacon cubes in a small pot. In addition, two finely chopped cloves of garlic and fresh, finely chopped herbs were added, in our case dill, chives and parsley. Everything is then mixed with two cups of sour cream. The sour cream should be warmed up if possible but not boiled. The whole thing you can then still taste, with pepper and salt (depending on the ham you no longer need salt).
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