German Onion Pie, known as Zwiebelkuchen, is one of those timeless recipes that instantly feels like home. It’s hearty without being heavy, rustic yet elegant, and deeply comforting in the way only traditional dishes can be. With its flaky buttery crust, sweet caramelized onions, smoky bacon, and creamy custard filling, this pie captures the soul of old-world German cooking. In many regions of Germany, Zwiebelkuchen is traditionally enjoyed in autumn, often served with a glass of young wine (Federweißer). The slow-cooked onions develop a natural sweetness that perfectly balances the saltiness of the bacon, while the custard brings everything together in a rich, velvety bite. It’s the kind of dish that fills the kitchen with irresistible aromas and brings people to the table before you even call them. Whether served warm from the oven or at room temperature, this savory pie is perfect for brunch, lunch, or a cozy dinner alongside a crisp green salad.
📝 Ingredients
- 1 pie crust (homemade or store-bought)
- 4 cups yellow onions, thinly sliced
- 6 slices bacon, chopped
- 1 cup sour cream
- 2 eggs
- ½ teaspoon salt
- ¼ teaspoon black pepper
- ¼ teaspoon caraway seeds (optional, but traditional)
👩🍳 Preparation
- Preheat the oven
Preheat your oven to 375°F (190°C). Fit the pie crust into a 9-inch pie dish and set aside. - Cook the bacon
In a large skillet over medium heat, cook the chopped bacon until crispy. Remove with a slotted spoon and set aside, leaving the flavorful drippings in the pan. - Caramelize the onions
Add the sliced onions to the bacon drippings. Cook over low to medium-low heat for 15–20 minutes, stirring occasionally, until the onions are soft, golden, and lightly caramelized. This step is key to the pie’s depth of flavor—don’t rush it. - Prepare the custard
In a bowl, whisk together the sour cream, eggs, salt, black pepper, and caraway seeds until smooth and creamy. - Assemble the pie
Spread the caramelized onions evenly over the pie crust. Sprinkle the cooked bacon on top. Slowly pour the custard mixture over the filling, making sure it distributes evenly. - Bake
Bake for 35–40 minutes, or until the custard is set and the top is lightly golden. - Rest and serve
Let the pie cool for about 10 minutes before slicing. This helps the filling firm up and makes serving easier.
🌿 Serving Suggestions & Tips
- Serve with a simple green salad dressed with vinegar to balance the richness.
- Enjoy warm or at room temperature—both are delicious.
- For extra authenticity, add a pinch of nutmeg or a little cream to the custard.
This German Onion Pie is comfort food at its finest—simple ingredients, slow cooking, and generations of tradition baked into every slice. Perfect for sharing, savoring, and coming back to again and again. 🧡