Zwiebelkuchen (Onion Pie)
Submitted by Wanderkind
A savory German onion pie featuring a yeasted crust topped with caramelized onions, crispy bacon, and a creamy sour cream custard. Perfect as an appetizer or main dish, especially during autumn or Oktoberfest celebrations.
YIELD
6 servingsPREP
10 minCOOK
35 minREADY
75 minChef Tips
- Yeast Activation: Ensure water is warm (110°F–115°F). Too hot (above 130°F) kills yeast; too cold slows rising. Use a thermometer if unsure.
- Onion Cooking: Cook onions slowly to avoid browning, which can make them bitter. Stir frequently for even cooking.
- Bacon Grease: If bacon renders too much grease, drain excess, leaving about 2 tablespoons for onions. Too much grease can make the pie soggy.
- Dough Consistency: The dough should be soft but not sticky. Add flour gradually during kneading to avoid a dense crust.
- Make-Ahead: Prepare the dough and topping a day ahead. Refrigerate separately, then assemble and bake fresh for best texture.
Optional Variations
- Vegetarian: Omit bacon and sauté onions in 2 tablespoons butter or olive oil. Add ½ teaspoon smoked paprika for a smoky flavor.
- Cheese Lover’s: Sprinkle ½ cup grated Gruyère or Emmental cheese over the onions before adding the sour cream mixture.
- Herb Infused: Add 1 teaspoon fresh thyme or caraway seeds to the onion mixture for extra flavor, traditional in some German regions.
- Gluten-Free: Substitute all-purpose flour with a 1:1 gluten-free baking blend, but check yeast compatibility as some blends vary.
Potential Pitfalls to Avoid
- Soggy Crust: Ensure the pan is well-greased, and don’t overload with topping. Pre-baking the crust for 20 minutes helps set it.
- Underproofed Dough: If the dough doesn’t rise enough, it may be too cold or the yeast is old. Test yeast by dissolving in warm water with sugar; it should foam in 5–10 minutes.
- Overcooked Topping: Watch the sour cream layer during the final bake. If it browns too quickly, tent with foil.
Ingredients
Directions
- Prepare the Dough:
- In a large mixing bowl, combine yeast, sugar, 1 teaspoon salt, and ½ cup flour.
- Add shortening and warm water (ensure it’s not too hot to avoid killing the yeast). Stir until blended.
- Beat with a wooden spoon or mixer on medium speed for 2 minutes until smooth.
- Gradually add 2–2½ cups more flour, ½ cup at a time, until a soft, slightly sticky dough forms. If using a mixer you will want to change to a dough hook.
- Turn dough onto a lightly floured surface and knead for 5 minutes until smooth and elastic.
- Place dough in a greased bowl, cover with a clean kitchen towel, and let rise in a warm place (75°F–85°F) for 30 minutes, or until slightly puffed.
- Shape the Dough:
- Preheat oven to 400°F (200°C). Lightly grease a 12-inch pizza pan or a large baking sheet.
- After rising, pat or roll the dough into the pan, forming a 12-inch circle. Press the edges to create a ½-inch rim to hold the topping.
- Cover loosely and set aside while preparing the topping.
- Prepare the Topping:
- In a large skillet, cook bacon over medium heat until crispy, about 5–7 minutes. Remove with a slotted spoon and drain on paper towels.
- In the same skillet, add sliced onions to the bacon grease. Cook over medium-low heat for 10–12 minutes, stirring occasionally, until soft and translucent but not browned.
- Remove from heat and stir in cumin, ½ teaspoon salt, and black pepper. Let cool slightly.
- Assemble the Pie:
- Evenly spread the onion mixture over the dough. Sprinkle crispy bacon on top.
- Bake in the preheated oven for 20 minutes, until the crust begins to set.
- Evenly spread the onion mixture over the dough. Sprinkle crispy bacon on top.
- Add Sour Cream Topping:
- In a small bowl, whisk together sour cream and egg yolk until smooth.
- Remove the pie from the oven and pour the sour cream mixture evenly over the onions and bacon.
- Return to the oven and bake for 10–15 minutes more, until the topping is set and the crust is golden brown.
- Serve: Let the pie cool for 5 minutes before slicing. Serve warm or at room temperature.
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