Czech egg drop soup, or vaječná polévka, is a simple home-style soup of eggs cooked in seasoned broth, often with a little flour, butter, and vegetables for body. This version builds flavor with onion, carrot, celery, marjoram, and parsley, then streams beaten eggs into the hot soup for tender ribbons; Czech households make it in different ways, so the vegetables and seasonings can vary.
Ingredients
- 2 tablespoons (28 g) unsalted butter
- ½ cup (75 g) finely chopped yellow onion
- ½ cup (65 g) finely diced carrot
- ⅓ cup (35 g) finely diced celery
- 1 small garlic clove (3 g), finely minced
- 2 tablespoons (16 g) all-purpose flour
- 6 cups (1.4 L) low-sodium chicken broth or vegetable broth
- ½ teaspoon (1 g) dried marjoram, crushed between your fingers
- ¼ teaspoon (0.5 g) ground black pepper, plus more to taste
- ½ teaspoon (3 g) fine salt to start, plus more as needed
- 2 large eggs (about 100 g without shells), beaten until combined
- 2 tablespoons (8 g) finely chopped fresh parsley
- 1 teaspoon (5 ml) fresh lemon juice, optional
Instructions
- Prepare the ingredients. Finely chop the onion, carrot, celery, and garlic so they soften quickly and fit comfortably on a spoon. Beat the eggs in a small bowl until the whites and yolks are evenly mixed, but do not whip them foamy. Measure the broth, flour, and seasonings before you begin cooking; this soup comes together quickly once the vegetables are softened.
- Soften the vegetables. Melt the butter in a medium, heavy-bottomed saucepan over medium heat. Add the onion, carrot, and celery, then cook for about 5 minutes, stirring regularly, until the onion looks translucent and the carrot has started to soften. Keep the heat moderate: the butter should sizzle gently, not brown. Add the garlic and cook for 30 seconds, just until fragrant.
- Make the light roux. Sprinkle the flour evenly over the vegetables and stir for 1 minute. The flour should coat the vegetables and lose its raw, dusty look without taking on much color. This small roux gives the broth a little body; it is not meant to make the soup thick like a cream soup.
- Add the broth and seasonings. Pour in about 1 cup (240 ml) of broth a little at a time, stirring or whisking as you go to loosen any floury spots. Once the mixture is smooth, add the remaining broth, marjoram, pepper, and ½ teaspoon (3 g) salt. Bring the soup to a gentle boil, stirring once or twice, then lower the heat so it simmers steadily rather than bubbling hard.
- Simmer until the vegetables are tender. Cook uncovered for about 10 minutes, stirring occasionally. The carrot should be tender when pierced with a fork, while still holding its shape. Taste the broth before adding the eggs. If it tastes flat, add a little more salt; broth brands vary considerably, so seasoning to taste is more dependable than adding a large amount at the start.
- Stir in the eggs safely. Reduce the heat to low so the soup is hot but not at a rolling boil. Stir the soup in one direction to create a gentle current, then pour in the beaten eggs in a thin, steady stream. Continue stirring gently for about 1 minute, until soft strands form. Keep the soup over low heat and check the temperature in the liquid with a food thermometer, avoiding the pan’s bottom; the egg-containing soup must reach the USDA FSIS safe minimum of 160°F (71°C). If it has not reached that temperature, keep heating and stirring gently, then check again. Do not let the soup boil vigorously, which can make the egg pieces tough.
- Finish and serve. Turn off the heat and stir in the parsley and, if you like a brighter finish, the lemon juice. Taste once more and adjust the salt and pepper. Ladle into warm bowls and serve promptly while the egg ribbons are soft and the broth is hot.
Tips
- Keep the egg stream thin. Pouring slowly while the broth moves gently creates delicate strands. A fast pour or a hard boil is more likely to make large clumps or rubbery pieces. If you prefer a more substantial egg texture, pour more slowly and stir less; for fine ribbons, use a steady stream and gentle continuous stirring.
- Use broth you enjoy on its own. Chicken broth gives the soup a familiar savory flavor, while vegetable broth makes it meat-free. If using salted broth, start with less added salt and adjust at the end. Water can work in a pinch, but the soup will taste noticeably lighter; add extra herbs and taste carefully rather than compensating with excessive salt.
- Make the flour smooth before adding all the liquid. Stirring the first cup of broth into the butter-and-flour mixture helps prevent lumps. If a few remain, whisk gently before adding the rest of the broth. A little flour thickens the soup subtly; do not add extra flour unless you want a heavier consistency.
- Plan for the texture after storage. Egg ribbons become firmer as the soup cools, and the broth may thicken slightly. Reheat gently with a splash of water or broth if needed. For the best texture, cook only the amount of soup you expect to eat soon, or add the eggs to a smaller portion of reheated broth.
Serving Suggestions
Serve this soup as a light first course, a simple lunch, or part of a relaxed supper. A slice of rye bread, crusty bread, or a soft bread roll is useful for dipping and makes the meal more filling. For a larger spread, pair it with a composed salad, open-faced sandwiches, or roasted vegetables. Keep the accompaniments mild enough that the soup’s marjoram and delicate egg flavor remain noticeable.
Offer extra chopped parsley and black pepper at the table. A few drops of lemon juice can lift the broth, especially if it tastes rich or a little muted, but add it sparingly so the soup does not become sour. Serve the soup in small bowls as a starter, or use larger bowls with bread for a more substantial serving. If serving several courses, make the soup shortly before the meal and keep it hot without boiling.
Variations
Use vegetable broth: Choose a well-flavored vegetable broth for a meat-free version. The recipe is otherwise unchanged. If the broth is especially sweet from carrots or onions, a small squeeze of lemon can help balance it.
Add potatoes: For a heartier bowl, add 1 cup (150 g) of small, evenly diced potato with the broth. Simmer until the pieces are fork-tender, usually 12–15 minutes depending on their size, before adding the eggs. The extra potato makes the soup more filling and may require a little additional broth if you prefer it thin.
Include cooked noodles: Add 1 cup (140 g) cooked small noodles to each serving, or stir them into the pot just before serving. Keep noodles separate if you expect leftovers, because they absorb broth as they sit. This is a practical home-style addition rather than a required ingredient.
Change the herbs: Marjoram gives the soup a distinctly Central European flavor. If you cannot find it, use ¼ teaspoon (0.5 g) dried thyme instead; the result will be pleasant but less characteristic. Fresh chives can replace some or all of the parsley for a gentle onion note. Add delicate fresh herbs at the end rather than simmering them for the full cooking time.
Make it without flour: Omit the butter and flour and bring the broth and vegetables to a simmer directly. The result will be a lighter, clearer soup with no roux-thickened body. You can still add the eggs in the same way and finish with parsley. This variation is useful when you want the egg ribbons and broth to be the focus.
Storage and Reheating
Cool leftover soup promptly and refrigerate it within 2 hours of cooking, in a covered, shallow container. It keeps for 3–4 days in the refrigerator. The egg pieces will firm up and may break apart when stirred, so handle the soup gently. If you added noodles, they will continue to absorb liquid; store them separately when possible and combine them with the soup when serving.
Reheat only the portion you need in a saucepan over medium-low heat, stirring occasionally, until the soup reaches 165°F (74°C). Check with a food thermometer, especially if reheating a large amount. Avoid a rolling boil, which can toughen the eggs. Add a tablespoon or two of broth or water if the soup has thickened. Freezing is possible, but the egg texture can become spongy and the vegetables softer after thawing; if you choose to freeze it, use an airtight freezer-safe container and aim to use it within 2–3 months for better quality. Thaw in the refrigerator and reheat to 165°F (74°C).
Frequently Asked Questions
Is Czech egg drop soup the same as Chinese egg drop soup?
They share the idea of adding beaten egg to hot broth, but the seasoning and preparation differ. This Czech-style version uses a small butter-and-flour base, vegetables, and marjoram. Chinese egg drop soups commonly use different seasonings and may be thickened with a starch slurry. Recipes vary in both traditions, so the name describes a broad technique rather than one identical soup.
Can I make this soup without a thermometer?
A thermometer is the most reliable way to confirm that the egg-containing soup reaches the USDA FSIS safe minimum temperature of 160°F (71°C). Keep the soup hot and gently simmering after adding the eggs, stirring until the egg ribbons are fully set throughout, but visual cues are less precise than a temperature check. Avoid tasting before the eggs are cooked.
Why did my eggs turn into clumps?
The broth may have been boiling too hard, or the eggs may have gone in too quickly. Lower the heat before adding them, stir the broth into a gentle current, and pour the eggs in a thin stream. Small clumps are still fine to eat once the soup reaches 160°F (71°C); for the next batch, use gentler heat and a slower pour.
Can I prepare the soup ahead?
You can chop the vegetables and measure the dry seasonings a day ahead, keeping them covered and refrigerated. You can also cook the broth and vegetables ahead, chill the soup promptly, and add the eggs when reheating for the freshest ribbons. Bring the soup back to a simmer, add the eggs, and make sure the egg-containing soup reaches 160°F (71°C). Refrigerate cooked soup within 2 hours and use it within 3–4 days.
What can I use instead of marjoram?
Dried thyme is the most practical substitute; start with half the amount because its flavor can be more assertive. The soup will still be savory, but it will lose the soft, familiar marjoram character associated with many Central European-style seasonings. Parsley alone works for a milder bowl, though it will taste simpler.
Can I make the soup vegetarian?
Yes. Use vegetable broth instead of chicken broth and check that it is seasoned to your liking. Butter is vegetarian for many diets, but if you avoid dairy, use a neutral plant-based butter or oil. The eggs remain the defining ingredient, so this version is vegetarian rather than vegan.
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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
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