Preheat the Oven: Preheat your oven to 375°F (190°C) and grease a large baking dish or line it with parchment paper.
- Prepare the Ingredients: Drain and rinse the sauerkraut under cold water to reduce its saltiness. Place it in the prepared baking dish. Add the sliced onion, caraway seeds (if using), garlic powder, black pepper, and a pinch of salt. Drizzle with olive oil or melted butter and mix to combine.
- Add the Sausages: Arrange the sausages on top of the sauerkraut mixture. Pour the apple cider or beer around the sausages and sauerkraut (optional).
- Bake the Dish: Cover the baking dish with aluminum foil and bake for 25-30 minutes.
- Finish the Sausages: After 25-30 minutes, remove the foil and continue baking for another 15-20 minutes, or until the sausages are cooked through and nicely browned (internal temperature should reach 160°F or 71°C).
- Serve: Once everything is cooked, remove from the oven, let it rest for a few minutes, and garnish with fresh parsley before serving.