Chef-tested recipe
Tangy sour trahana simmered with tomato and finished with milk, feta, and Greek oregano
Trahanosoupa turns trahana—fermented cracked wheat or flour dried into small granules—into one of Greece’s most elemental cold-weather meals. This tomato version uses sour trahana for its gentle cultured tang, then adds milk and feta for richness. Frequent stirring allows the grains to soften into a thick, creamy soup while still retaining their rustic texture.
Recipe at a glance
- Servings
- 4 servings
- Prep Time
- 10 mins
- Cook Time
- 35 mins
- Total Time
- 45 mins
- Cuisine
- Greek
- Course
- Soups and stews
- Cooking Method
- Onion softening, trahana simmering, and dairy finishing
- Difficulty
- Easy
- Best Served With
- Best served with country bread, olives, roasted peppers, a simple cabbage salad, or extra feta and olive oil at the table.
Before you begin
Ingredients & equipment
Gather what you need first, then cook through the method with confidence.
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Equipment
- Heavy soup potpaid link
- Wooden spoonpaid link
- Box graterpaid link
- Ladlepaid link
- Chef’s knifepaid link
- Cutting boardpaid link
- Digital kitchen scalepaid link
Ingredients
For the soup
- Extra-virgin olive oilpaid link: 45 ml
- Yellow onion, finely grated: 150 g
- Sour trahana: 250 g
- Ripe tomatoes, finely grated: 400 g
- Unsalted chicken or vegetable stock, hot: 1200 ml
- Whole milk, at room temperature: 200 ml
- Feta cheese, crumbled: 180 g
- Dried Greek oreganopaid link: 2 g
- Fine sea saltpaid link: 5 g
- Freshly ground black pepper: 3 g
For serving
- Extra-virgin olive oilpaid link: 20 ml
- Feta cheese, crumbled: 80 g
- Fresh oregano leaves: 10 g
Preparation Overview
Grate the onion and tomatoes so they melt quickly into the soup. Keep the stock hot before adding it. Bring the milk to room temperature and crumble the feta before the trahana begins to thicken.
Method
Heat 45 ml olive oil in a heavy soup pot over medium heat.
Add the grated onion and cook for 5 to 6 minutes until soft and translucent.
Stir in the trahana and coat the granules in the oil for 1 minute.
Add the grated tomatoes and cook for 3 minutes.
Pour in 1000 ml hot stock while stirring continuously.
Bring to a gentle simmer and cook for 20 to 25 minutes, stirring often so the trahana does not stick.
Add some or all of the remaining 200 ml stock if the soup becomes too thick before the grains are tender.
Reduce the heat to low and stir in the milk.
Add 180 g feta, dried oregano, black pepper, and up to 5 g salt.
Cook gently for 3 minutes without boiling hard, until the feta partly melts and the soup is creamy.
Taste and adjust the seasoning, remembering that feta adds salt.
Ladle into warm bowls and finish with olive oil, the remaining feta, and fresh oregano.
Beginner Technique Notes
Trahana absorbs liquid quickly, so keep extra hot stock ready and stir often.
Use low heat after adding milk and feta to avoid curdling.
Salt only near the end because trahana and feta may already be well seasoned.
The finished soup should be thick and spoonable, not dry like porridge.
Tips and Variations
Sweet trahana may replace sour trahana for a milder, milkier flavour.
For a very simple village-style version, omit tomato and use additional stock and milk.
Add a pinch of dried chilli for warmth or a little lemon zest for brightness.
Serve immediately because the soup thickens noticeably as it cools.
Serving Ideas
- Use wide warmed bowls and leave visible feta crumbles on top for contrast with the soft, creamy grains.
Storage
Refrigerate for up to 3 days. Reheat gently with extra stock or milk until steaming, stirring often. Freezing is not recommended because the dairy and grain texture can separate.
Nutritional Value
Allergen Notes
Contains gluten and milk. Commercial trahana may also contain egg; verify the package. Use stock free from celery or other declared allergens when required.
Frequently Asked Questions
What is sour trahana?
It is a dried Greek grain product fermented with soured milk or yoghurt, giving it a pleasantly tangy flavour.
Why does the soup thicken so quickly?
The small dried grains absorb stock and release starch as they cook.
Can I make it without tomato?
Yes. Many traditional versions are pale and use only water or stock, butter or olive oil, milk, and feta.
Can I reheat trahana soup?
Yes, but add extra liquid and heat slowly because it becomes much thicker after chilling.
