Summary: Lentils with vinegar, onions, and typically eggs or sausage. A humble Czech classic that is deeply comforting. Ready in 60 minutes, serves 6.
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Category: Meatless Dishes, Czech Cuisine
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Quick Overview
- Dish: Sour Lentils
- Category: Meatless Dishes, Czech Cuisine
- Cuisine: Czech
- Main ingredient: Brown lentils, 500 g
- Guide: 20 Most Famous Czech Dishes
- Total time: 60 minutes (10 min prep + 50 min cooking)
- Difficulty: Easy
- Servings: 6 (Portion weight: 300 g)
- Key technique: Simmering
- Preparation types: Simmering
- Dietary info & allergens: Contains eggs, dairy (if served with egg). Suitable for vegetarians.
- Suitable for: Weeknight dinner, light lunch, meatless Monday
- Nutrition (per serving): 320 kcal, Protein: 18 g, Fat: 8 g, Carbs: 44 g
- Storage: 3 days in fridge, 2 months in freezer
- Pairing: Pilsner, dry white wine, sparkling water
- In short: A humble lentil stew with vinegar and onions, topped with a fried egg or sliced sausage. The Czech meatless classic.
- Last updated: 19. 9. 2026
WAGUU says: “Sour lentils are the dish Czech families eat when they want something simple, filling, and deeply satisfying. The vinegar is what makes it sing.”
Key Facts
| Prep time: | 10 minutes |
| Cook time: | 50 minutes |
| Temperature: | Gentle simmer |
| Servings: | 6 |
At a Glance
Tender brown lentils simmered with onions, bay leaf, and allspice, then soured with vinegar. Topped with a fried egg or sliced sausage. A humble Czech classic that is deeply comforting.
Ingredients
Base servings: 6 • Portion weight: 300 g
| Ingredient | Amount | Quality |
|---|---|---|
| Brown lentils | 500 g | Dried, rinsed |
| Onions | 2 pieces | Brown, medium, chopped |
| Lard or vegetable oil | 40 g | For frying |
| All-purpose flour | 20 g | Plain |
| Vegetable stock | 1200 ml | Homemade or low-sodium |
| Vinegar | 40 ml | White wine vinegar |
| Garlic | 4 cloves | Fresh, minced |
| Bay leaves | 2 pieces | Dried |
| Allspice berries | 4 pieces | Whole |
| Caraway seeds | 3 g | Whole |
| Sugar | 5 g | Caster |
| Salt | 12 g | Fine sea salt |
| Black pepper | 2 g | Ground |
| Eggs | 6 pieces | For frying or boiling |
| Smoked sausage (optional) | 300 g | Sliced |
| Fresh parsley | 10 g | Chopped, for garnish |
Why You Will Love This Recipe
- Simple and filling: Lentils are cheap, nutritious, and deeply satisfying.
- Tangy and savory: The vinegar cuts through the richness of the egg or sausage.
- Better the next day: Like all stews, the flavor improves overnight.
Why it works: The lentils are simmered gently until soft but intact. The vinegar is added at the end to preserve its brightness. The roux thickens the stew without making it heavy.
Recipe Overview
Prep: 10 min | Cook: 50 min | Difficulty: Easy | Servings: 6 | Type: Main Dish | Origin: Czech
Detailed Method
Total progress: 0 % done
Phase 1: Cooking the Lentils – 35 min
Equipment: Large saucepan
1. Rinse the lentils under cold water. Place them in a large saucepan with the vegetable stock, bay leaves, allspice, caraway seeds, and half of the chopped onion. Bring to a simmer and cook for 25–30 minutes until the lentils are soft but still hold their shape.
VKB: The lentils are soft but not mushy. They hold their shape when pressed.
Before you continue:
Do not let the lentils boil vigorously. A gentle simmer keeps them intact. Stir occasionally to prevent sticking.
Phase 2: Making the Roux – 10 min
Equipment: Frying pan
2. While the lentils cook, make the roux. Heat the lard in a frying pan over medium heat. Add the remaining chopped onion and cook until golden, about 5 minutes. Add the flour and cook for 2 minutes, stirring constantly. Add the minced garlic and cook for 30 seconds.
VKB: The onion is golden and soft. The roux is smooth and pale. The garlic is fragrant.
Before you continue:
Do not burn the garlic. Burnt garlic becomes bitter. Stir constantly and keep the heat medium.
Phase 3: Finishing the Lentils – 5 min
Equipment: Same saucepan
3. Stir the roux into the cooked lentils. Add the vinegar, sugar, salt, and pepper. Simmer gently for 5 minutes. The lentils should be thick and creamy. Taste and adjust the vinegar and sugar.
VKB: The lentils are thick and creamy. They taste tangy from the vinegar and slightly sweet.
Before you continue:
Do not boil the lentils after adding the roux. Boiling makes them mushy and breaks their shape.
Phase 4: Frying the Eggs – 5 min
Equipment: Frying pan
4. Fry the eggs in a little lard or oil until the white is set and the yolk is still runny. Season with salt and pepper. Alternatively, boil the eggs for 8 minutes and slice them.
VKB: The egg white is opaque and firm. The yolk is still soft when touched.
Phase 5: Serving – 2 min
Equipment: Serving bowls
5. Ladle the lentils into bowls. Top each with a fried egg or sliced sausage. Garnish with fresh chopped parsley. Serve with fresh rye bread or pickles.
VKB: The lentils are thick and creamy. The egg adds richness. The parsley adds a fresh green note.
Required Equipment
| Equipment | Ideal Size | Alternative | Risk |
|---|---|---|---|
| Large saucepan | 3–4 L | Pot | Overflowing lentils |
| Frying pan | 24 cm | Skillet | Burning the roux |
| Wooden spoon | 30 cm | Silicone spatula | Metal scratches the pot |
Shopping List
Nutritional Profile
Values per serving (without side dish). Calculated from average nutritional values of ingredients.
| Nutrient | Per 100 g | Per Serving | Per 6 Servings |
|---|---|---|---|
| Energy | 107 kcal | 320 kcal | 1920 kcal |
| Fat | 2.7 g | 8 g | 48 g |
| of which saturated | 1 g | 3 g | 18 g |
| Carbohydrates | 14.7 g | 44 g | 264 g |
| of which sugars | 1.3 g | 4 g | 24 g |
| Protein | 6 g | 18 g | 108 g |
| Salt | 0.9 g | 2.7 g | 16.2 g |
Reference intake of an average adult (8400 kJ / 2000 kcal).
WAGUU Pro Level
- Pro standard: Verified recipe with precise ratios and visual checkpoints.
- Tip 1: Use brown or green lentils. Red lentils break down too much.
- Tip 2: Add the vinegar at the very end. Boiling vinegar makes it harsh.
- Tip 3: For a richer flavor, use beef or chicken stock instead of vegetable stock.
- Tip 4: Serve with a slice of rye bread rubbed with raw garlic.
Scientific Background
The lentils are simmered gently until soft but intact. The vinegar is added at the end to preserve its brightness. The roux thickens the stew without making it heavy. Lentils are a rich source of plant protein and fiber.
Fine Dining – Professional Techniques
- Plate composition: Ladle the lentils into a shallow bowl. Top with a fried egg.
- Texture contrasts: Add crispy fried onions or a slice of toasted rye bread.
- Temperature contrast: Serve the lentils hot and the egg warm.
- Aromatic additions: Garnish with fresh parsley or chives.
Sensory Radar
- Appearance: Thick, golden-brown lentils with a fried egg on top.
- Aroma: Vinegar, onions, warm spices.
- Taste: Tangy, savory, slightly sweet, deeply comforting.
- Texture: Soft lentils, runny egg yolk, crispy bread.
Pairing
- Beer: Czech Pilsner (Pilsner Urquell, Budweiser Budvar)
- Wine: Dry white wine (Riesling, Grüner Veltliner)
- Non-alcoholic: Sparkling water with lemon
Preparation Variations
- Sausage version: Add 300 g of sliced smoked sausage to the lentils during the last 10 minutes of cooking.
- Vegan version: Omit the egg and sausage. Serve with pickles and rye bread.
Allergens and Dietary Information
Contains: Gluten, eggs • Gluten: Yes (flour in roux) • Not suitable for: Gluten-free diets. Suitable for vegetarians (if served without sausage).
Suitable For
Weeknight dinner, light lunch, meatless Monday, Lenten meals
Substitution Catalogue
- Brown lentils: Green lentils (avoid red lentils)
- Lard: Vegetable oil or butter
- All-purpose flour: Gluten-free flour blend (for gluten-free)
FAQ
Can I make this ahead of time?
Yes. Make the lentils a day ahead and reheat gently. The flavor improves overnight.
What if the lentils are too thick?
Add a little water or stock. The lentils will thicken as they cool.
Can I freeze the leftovers?
Yes. Freeze for up to 2 months. Thaw overnight in the fridge and reheat gently.
What can I use instead of eggs?
Sliced smoked sausage, fried tempeh, or a dollop of sour cream.
WAGUU Petr Advises: Cooking for 6 or More?
6–8 people: Double the recipe. Use a larger pot. • 10+ people: Make a double batch and keep it warm in a slow cooker.
Serving Suggestions
Storage and Reheating
Fridge: 3 days • Freezer: 2 months • Reheating: Gently on the hob, stirring occasionally. Add a splash of water if needed.
Author: WAGUU Petr & Team • Published: 19 Sep 2026
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Most Common Mistakes
- Boiling the lentils vigorously – They will break apart and become mushy. Keep at a gentle simmer.
- Adding vinegar too early – Boiling vinegar makes it harsh. Add it at the end.
- Not enough vinegar – This dish is supposed to be tangy. Do not be shy with the vinegar.
- Overcooking the lentils – They should be soft but intact. Check after 25 minutes.