Zwiebelsuppe (German Onion Soup) Recipe

Zwiebelsuppe (German Onion Soup) Recipe

Deeply caramelized, richly satisfying

By Sarah Mitchell June 14, 2026

Prep: 10 min
Cook: 1h
Servings: 4
Difficulty: Medium
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Caramelized onions in dark beer broth topped with crusty bread and bubbling Gruyère.

About This Recipe

"Zwiebelsuppe (German Onion Soup)" is a Soups & Stews recipe that brings large onions, thinly sliced, butter, dark beer, beef broth and crusty bread together into a flavorful, well-balanced dish. Rated Medium and ready in about 70 minutes, this recipe fits easily into a busy schedule. It serves 4 and works equally well for a weeknight dinner or a relaxed weekend meal. The German inspiration behind this dish balances classic techniques with clean, vibrant flavors.

Ingredients

  • 6 large onions, thinly sliced
  • 3 tbsp butter
  • 1 cup dark beer
  • 4 cups beef broth
  • 4 slices crusty bread
  • 1.5 cups Gruyère, grated

Instructions

  1. 1

    Cook onions in butter on low heat 30-40 minutes until deep golden.

  2. 2

    Add beer and broth. Simmer 20 minutes.

  3. 3

    Ladle into oven-safe bowls. Top with bread and cheese. Broil until bubbly.

Expert Tips

For the best result, use the freshest, highest-quality ingredients you can find. Large onions, thinly sliced is the heart of this dish, so choose it with care. Read the recipe through before you start and prep all ingredients in advance (mise en place) so the cooking process is smooth. Oven and stovetop work especially well for this preparation. Taste and adjust salt, pepper, and acid at the end to make the flavors pop.

What To Serve With This

"Zwiebelsuppe (German Onion Soup)" is a versatile Soups & Stews dish that pairs beautifully with a simple side salad, buttered green beans, roasted potatoes and classic German sides. Choose at least one fresh and one hearty side to create a balanced meal.

Storage & Reheating

Zwiebelsuppe (German Onion Soup) stores well in an airtight container in the refrigerator for 2–3 days. Let it cool to room temperature before refrigerating before sealing the container. Reheat gently until warmed through, adding a small splash of liquid if needed to restore the original texture.

Nutrition Facts (per serving)

501
Calories
38g
Protein
24g
Fat
35g
Carbs
4g
Fiber
6g
Sugar
640mg
Sodium

Frequently Asked Questions

How long does it take to make Zwiebelsuppe (German Onion Soup)?

This recipe takes about 10 minutes of prep and 60 minutes of cooking, for a total of roughly 70 minutes. It serves 4 and is rated Medium.

How do I store leftover Zwiebelsuppe (German Onion Soup)?

Store leftover Zwiebelsuppe (German Onion Soup) in an airtight container in the refrigerator for up to 3-4 days. Make sure to let it cool to room temperature before refrigerating. Reheat in the oven or on the stovetop for best results.

Can I make Zwiebelsuppe (German Onion Soup) ahead of time?

Yes, you can prepare Zwiebelsuppe (German Onion Soup) in advance. Store it in an airtight container in the refrigerator for up to 3 days. Reheat gently before serving to preserve the best texture and flavor.

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