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Craft Beering » Beer Garden Menu » German Onion Pie (Zwiebelkuchen)

German Onion Pie (Zwiebelkuchen)

How to make Zwiebelkuchen –  the famous German onion pie. This recipe is from the Bavarian region of Swabia.

Deep dish German onion pie aka Zwiebelkuchen (Swabian version with bacon)

  • Go straight to the Recipe Card or
  • Read on for relevant information and step by step pictures (about 2 mins)

What is Zwiebelkuchen?

Zwiebelkuchen is a savory German onion pie. It is prepared with a crust filled with a mixture of eggs, cream, cooked onions and frequently bacon. Essentially a hybrid between a deep dish pizza and a quiche. Flavor wise it is remarkably similar to Flammkuchen.

In direct translation from German the meaning of the specialty is onion cake (Zwiebel=onion and Kuchen=cake).  

The traditional shape is round but modern versions include sheet style rectangular onion pies. 

Background 

In Germany onion pie is enjoyed year round, but it reaches the peak of its popularity during the fall harvest each year. It is the main gastronomic focus of the wine festivals of Germany’s wine regions (Baden, Rhine, Palatinate, Franconia, etc) as well as the Weimer onion market. It is also a popular offering during Oktoberfest and on beer garden menus in Bavaria.

Zwiebelkuchen has many regional variations. They involve both the ingredients used and the method of preparation.

For example in Southern Germany the crust is typically thinner than in other areas because the onions and bacon are added pre-cooked to the filling. In Saxony, the opposite is true.

In some areas people use a more pie like crust made with cold butter, in others a yeasty dough. 

Ingredients needed to make Onion Pie (the German way, with smoked bacon)

Ingredients for Zwiebelkuchen

Crust. Here we made a traditional Schwäbischer Zwiebelkuchen (the style popular in Southwestern Bavaria) so the crust is a yeast dough with milk (yeast, milk, sugar, salt, flour, butter). Alternatively, you can use store-bought pizza dough or pie crust. 

Onions. For the star ingredient of this dish you can choose yellow onions or an even sweeter variety such as vidalia. Red onions work too. 

Eggs. Classic binder used in the filling. 

Cream. Some regional versions especially those from areas near the French boarder use creme fraiche while in other areas heavy cream is added. You can substitute one for the other in the same quantity in this recipe.

Butter. Added both to the crust dough and scattered on top of the assembled onion pie before baking. Skip the latter if you do not wish your Zwiebelkuchen to be too rich.

Bacon. High-quality, thick cut, lightly smoked bacon is the traditional choice. 

Flour. Besides being used in the crust a bit of flour is added to the cooked down onions to absorb some of their moisture and to later on add as a thickening agent in the custard.

Seasonings. Salt is used liberally to flavor the filling. Regarding spices, caraway seed is a traditional option, famous for its digestive benefits. If you like nutmeg add a pinch or two to the custard. 

Garnish. Frequently chopped chives or German thyme are used as a garnish, a dollop of sour cream is complementary as well. 


How to Make German Onion Pie


Step 1. Make the dough for the crust.

  • To make the crust activate yeast with a bit of milk and sugar, then add flour, salt, more milk and butter and using the dough hook of a stand up mixer knead into a dough.
  • Let rest covered at a warm temperature until the dough rises enough to double in size before you roll it out.  

Skip entirely if using store bought pizza-dough or pie crust.

Steps to make the dough for Zwiebelkuchen crust

Step 2. Prep the Bacon and Onions for the Filling

  • Cut the bacon and onions as shown, set the onions aside and over medium heat cook the bacon until most of the fat is rendered.
  • Remove to a paper towel lined plate and let cool down.

Steps to prepare the bacon for German onion pie, Swabian style

  • Next, melt butter in the same pan and cook down the onions (it helps if you partially cover them to retain more of the moisture).
  • After a while add flour, mix, remove the onions from the heat and allow them to cool down. 

How to sweat the onions for German onion pie.

Step 3. Mix the filling, assemble and bake.

  • Whisk eggs and cream, add salt, cooked down onions and most of the bacon bits. Mix together.
  • Line your baking dish with parchment paper, arrange the crust and add the filling. 
  • Sprinkle with caraway seed, a few bacon bits and add flakes of butter. Bake. 

TIPS: (1)You don’t have to use parchment paper to line the baking dish of your choice, but using it certainly makes things much easier and is common practice in Germany. (2) The height of the crust will depend on the baking dish. The smaller it is  the higher up the crust will reach along the sides.

How to assemble German onion pie - crust, custard filling and onions etc.

Serving & Pairing German Onion Pie

Zwiebelkuchen is best served warm. A slice can be presented very casually as finger food or served plated, sometimes accompanied with sour cream and fresh herb garnish.

During the autumn wine festivals the most popular beverage pairing is a white new wine known as Federweisser. Riesling is also a favored option. Various German lagers such as Pils, Helles, Marzen, and Dunkel are another well-loved alternative.

Zwiebelkuchen onion pie slice

Other Recipes You Might Like

Flammkuchen (Alsatian Onion Tart)

Baked Onions with Dark Ale and Balsamic

Beer Brats & Onions

Beer Onion Gravy


We adapted this recipe from Chefkoch.de

German Onion Pie (Zwiebelkuchen)

German Onion Pie (Zwiebelkuchen)

Yield: 8 servings
Prep Time: 20 minutes
Cook Time: 55 minutes
Additional Time: 1 hour 30 minutes
Total Time: 2 hours 45 minutes

Zwiebelkuchen, a deep dish German onion pie is a popular delicacy during autumn harvest but also enjoyed year round. Make your own crust or use store bought. For a vegetarian version skip the bacon.

Ingredients

Yeast Dough for Crust*

  • 1 packet dry active yeast
  • 2/3 cup milk, lukewarm
  • 1 tsp sugar
  • 2 cups flour
  • 1 tsp salt
  • 1/4 cup butter, at room temperature

For Filling

  • 4 oz bacon, diced** (preferably smoked, leaner, thick cut)
  • 1 lb onions (about 2-3 medium sized)
  • 2 tbsp butter (for cooking the onions) + 1 tbsp butter (for optional topping before pie is baked)
  • 1 tbsp flour
  • 2 eggs
  • 1/2 cup heavy cream 
  • 2 tsp salt
  • pinch of nutmeg, optional
  • caraway seed, to taste

Instructions

YEAST DOUGH

1. In the bowl of a stand up mixer combine the yeast with the sugar and about half of the milk. Stir and let activate in a warm place. Anywhere from 5 to 20 mins, as necessary.

2. Attach the dough hook to mixer, add flour, salt and the rest of the milk to the activated yeast. Knead on low for a minute, then stop and add the butter. Knead again until a soft dough ball forms. Cover with plastic wrap and let rise in a warm spot, until doubled in size.

3. On a clean, lightly floured surface roll the dough into a round or rectangular shape sized to fit your baking dish. (Use a 9-10 inches diameter round dish or 9x9 square or about 9x10 rectangular dish).

Filling

1. In a pan over medium heat cook the diced bacon until it renders most of its fat. Remove to paper towel lined plate and let it cool down.

2. Peel and thinly slice the onions. In the same pan melt 2 tbsp butter, add the onions and cook until soft. Partially cover the pan with a lid to help them sweat. Once soft, add 1 tbsp flour, mix and cook for 1 more minute. Remove from heat and let cool down.

Assemble the filling only after you have rolled out the dough and are ready to place it inside the baking dish.

3. Preheat oven to 390 - 400 F.

4. In a bowl whisk eggs and cream, season with salt (liberally). Add nutmeg if using. Fold in the cooked onions and most of the bacon (reserve about 1 tbsp).

5. Line your baking dish with parchment paper, place the rolled dough and adjust it around the edges (how high the sides will go depends on the size of the dish) and add the filling. Sprinkle with caraway seeds, the reserved bacon and add a few flakes of butter.

6. Bake for 35 to 45 minutes, until the filling is nicely set and fully cooked and the crust golden brown. Allow the onion pie to cool down a tad bit, slice and serve warm.

Notes

*Alternatively use store-bought pizza dough or pie crust. Make sure you have enough to cover a 9 to 10 inch round dish or 9x9 or 9x10 square or rectangular dish (with plenty to fold up the sides of either one).

**If you skip it for a vegetarian version (popular in many areas of Germany) you do not have to increase the amount of onion. Simply omit the bacon.

Nutrition Information:
Yield: 8 Serving Size: 1
Amount Per Serving: Calories: 361 Total Fat: 20g Saturated Fat: 10g Trans Fat: 1g Unsaturated Fat: 8g Cholesterol: 98mg Sodium: 1205mg Carbohydrates: 34g Net Carbohydrates: 0g Fiber: 2g Sugar: 4g Sugar Alcohols: 0g Protein: 12g
© CraftBeering
Cuisine: German / Category: Beer Garden Menu

About CraftBeering

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Comments

  1. Loreto and Nicoletta Nardelli says

    October 11, 2019 at

    This is such a great pie, guys! It could easily replace pizza night, with a cold beer and a movie kind of night. Love the step by step!

    Reply
    • CraftBeering says

      October 11, 2019 at

      Thank you! Great idea btw:)

      Reply
  2. Kerryanne says

    October 10, 2019 at

    Wow Milena, my husband has just said ‘he’ is making this onion pie this weekend. Already salivating!!
    Thank you for sharing at Create, Bake, Grow and Gather this week. We always love your recipes. Pinning your recipe to our party board.
    Hugs,
    Kerryanne

    Reply
    • CraftBeering says

      October 11, 2019 at

      Hope he does well:) Thank you, Kerryanne!

      Reply
  3. Matt - Total Feasts says

    October 7, 2019 at

    I love German food, but I’ve not heard of this before. It sounds great, great with a good beer!

    Reply
  4. Katherine | Love In My Oven says

    October 3, 2019 at

    This sounds like something that I would definitely love, as well as my family! We pretty much never say no to onion and bacon in a dish 😉 Yum!

    Reply
  5. Dawn - Girl Heart Food says

    October 2, 2019 at

    This looks SO good! I haven’t heard of this type of pie before, so clearly I’ve been missing out! Sounds amazing and bet it would go over so well on Friday night with a cold bevy 🙂

    Reply
    • CraftBeering says

      October 2, 2019 at

      Even for breakfast:) Thank you, Dawn!

      Reply
  6. Jennifer @ Seasons and Suppers says

    October 2, 2019 at

    This looks absolutely delicious and I love that it has a yeast dough crust! You can never go wrong with eggs, cream and bacon, in my opinion 🙂

    Reply
    • CraftBeering says

      October 2, 2019 at

      You speak the truth:) We agree with your opinion – it is a rich pie, but delicious namely for the yeast crust and the filling!

      Reply
  7. Leanne says

    September 30, 2019 at

    As I’m a huge fan of both quiche and deep dish pizza, I am certain I would love this onion pie. And I’ve had flammkuchen before so it’s good to know it has a similar taste! Pinning and hope to make it some time soon!

    Reply
  8. Kelsie | the itsy-bitsy kitchen says

    September 29, 2019 at

    I’ve never heard of zwiebelkuchen but I totally need to try it, not just because it sounds delicious but also because I really like the name :). Adding this one to my must-try list now!

    Reply
  9. Denny Felizzi says

    September 29, 2019 at

    I have a feeling i’m gunna be all over this. Real soon!
    Sounds great!!!

    Reply
    • CraftBeering says

      October 1, 2019 at

      Cheers, Denny!

      Reply

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