Preheat your grill or heat a skillet over medium heat on the stove.
If using onions, you can sauté them in a separate pan with a little oil until they are soft and translucent. Set them aside for later.
Season the kassler chops with salt and pepper on both sides. You can adjust the amount of seasoning according to your taste preferences.
Add vegetable oil or melt butter in the skillet or brush the grill grates with oil to prevent sticking.
Place the kassler chops on the grill or in the skillet and cook for about 4-5 minutes per side. The cooking time may vary depending on the thickness of the chops. The goal is to cook them until they are heated through and have a nice golden brown color on the outside.
If desired, you can baste the chops with a little of the cooking fat or brush them with a glaze like honey or barbecue sauce during the last few minutes of cooking for extra flavor.
If you prefer a moister result, you can add about 1 cup of chicken or vegetable broth to the skillet after flipping the chops. This will create a flavorful steam that will keep the chops moist as they cook through. Simmer them for an additional 5-10 minutes, or until cooked to your desired doneness.
Once the kassler chops are cooked, remove them from the heat and let them rest for a few minutes.
Serve the chops hot with the sautéed onions on top, if desired. They go well with side dishes like sauerkraut, mashed potatoes, or steamed vegetables.Enjoy your deliciously cooked kassler chops!