Soups & Stews
This ash reshteh soup recipe brings the soul-warming essence of Persian cuisine to your kitchen with its perfect balance of silky broth, tender noodles, and vibrant herbs. 🌟 The secret lies in slow simmering the broth with red lentils and herbs until it reaches that velvety texture, creating a foundation that's both comforting and deeply flavorful.
What makes this traditional Persian dish truly special is the layering of ingredients—starting with the lentils and noodles, then adding crispy fried onions, fresh herbs, and a touch of lemon juice for brightness.
The result is a harmonious blend of textures and flavors that's both hearty and light, making it a perfect meal for any occasion.
The beauty of ash reshteh is its versatility—it can be made vegetarian or with optional meat, and the broth can be customized with additional herbs or spices to suit your taste.
This recipe delivers restaurant-quality results with a simple, foolproof method that's perfect for a cozy family dinner or a special gathering.
Ready in about 45 minutes, this soup is the ultimate comfort food that's packed with protein, fiber, and warmth. The crispy fried onions add a satisfying crunch, while the fresh herbs bring a burst of freshness to every spoonful. Let's get started on creating this timeless Persian classic!
Ingredients for ash reshteh soup
Silky lentils, crispy onions, and vibrant herbs make this Persian masterpiece shine.
| Ingredient | Amount | Notes |
|---|---|---|
| Red Lentils 🌾 | 1 cup | Rinsed before cooking |
| Dried Reshteh Noodles 🍜 | ½ cup | Persian flat noodles |
| Yellow Onions 🧅 | 1 whole | Thinly sliced for frying |
| Fresh Parsley 🌿 | ½ cup | Chopped, stems removed |
| Fresh Dill 🌿 | ¼ cup | Chopped, stems removed |
| Fresh Cilantro 🌿 | ¼ cup | Chopped, stems removed |
| Garlic Cloves 🧄 | 4 cloves | Minced for broth |
| Vegetable Oil 🫒 | ½ cup | For frying onions |
| Chicken or Vegetable Broth 💧 | 4 cups | Low-sodium preferred |
| Lemon Juice 🍋 | 2 tbsp | Freshly squeezed |
| Salt 🧂 | 1 tsp | Adjust to taste |
| Ground Black Pepper 🌶️ | ½ tsp | Freshly ground |
| Ground Cumin 🌿 | ½ tsp | Toasted for depth |
| Ground Turmeric 🌶️ | ¼ tsp | For golden color |
| Optional Ground Lamb or Beef 🥩 | ½ lb | Browned first if using |
The lentils are the heart of this soup—red lentils break down beautifully for that velvety texture. Grab the Persian reshteh noodles at Middle Eastern markets or order online if your local store doesn’t carry them. Fresh herbs are non-negotiable here: parsley, dill, and cilantro should be bright green, not wilted. The onions? Yellow onions are perfect for frying—thinly sliced so they crisp up just right. For the broth, low-sodium chicken or vegetable broth keeps the flavors balanced without overpowering.
No reshteh noodles? Substitute with thin rice noodles or angel hair pasta—just cook them a little longer. Fresh herbs missing? Dried herbs at one-third the amount work in a pinch, but you’ll miss that bright freshness. Want to skip the meat? The soup is still delicious—just add an extra half cup of lentils for heartiness. For the onions, fry them until deep golden—that’s where the magic happens. The broth can be made ahead and reheated, but add the herbs and lemon juice just before serving to keep them vibrant.
The broth keeps for 3 days in the fridge, but the noodles and herbs are best added fresh. Store the fried onions separately—they stay crispy for 2 days if kept in an airtight container. Freeze the broth without the noodles for up to 3 months. I always make a double batch—one for dinner, one for leftovers that taste even better the next day. The secret to restaurant-quality ash reshteh? Layer the ingredients in the right order—start with the broth, add noodles, then the crispy onions and herbs on top.
Why You'll Love This Recipe
- No-Chop Night: I swear by this trick—just slice the onions thin, toss them in hot oil, and let them caramelize while you stir the lentils. The reshteh noodles break down perfectly on their own, so no fussing with tiny strands.
- Herb-Packed Punch: That bright parsley and dill combo cuts through the richness of the lentils like a cool breeze. Honestly, the first time I skipped them, I missed the freshness immediately—now they’re non-negotiable.
- Leftover Hero: This soup actually tastes better the next day. The flavors meld, the noodles soften just right, and it’s still hearty enough to feed the whole family without breaking the bank.
- Budget Meal Magic: Red lentils and dried reshteh cost pennies but deliver restaurant-quality depth. Between us, I’ve served this at potlucks, sick-day dinners, and even as a side for guests—no one ever questions the price tag.
Step-by-step instructions for ash reshteh soup
Let's create this silky Persian masterpiece with layers of texture and flavor.
🍳 Step 1: Fry the Onions for Sweet Depth
Heat 0.5 cup vegetable oil in a large pot over medium-low heat. Add the 1 whole yellow onion sliced into thin half-moons. Cook gently for 15-20 minutes until the onions turn a beautiful golden brown and caramelize—this sweetens the broth and creates the soup's signature flavor base.
Here's the thing—don't rush this step. You'll know they're ready when they're deep golden brown and smell irresistibly sweet. If they start to darken too quickly, reduce the heat slightly. These caramelized onions are the soul of your ash reshteh.
👨🍳 Step 2: Toast the Spices and Add Lentils
In a small dry skillet over medium heat, toast the 0.5 tsp ground cumin and 0.25 tsp ground turmeric for 30 seconds until fragrant. Immediately add these toasted spices to the pot with the onions.
Rinse the 1 cup red lentils under cold water, then add them to the pot. Pour in the 4 cups chicken or vegetable broth and bring everything to a gentle boil. Once boiling, reduce heat to low and let the lentils simmer for 15 minutes until they're tender but still hold their shape.
I stir occasionally to prevent sticking, but don't worry if you see a thin layer of foam on top—that's normal. The lentils should be soft enough to mash slightly between your fingers but not completely mushy.
🔥 Step 3: Brown the Meat (If Using) and Add Herbs
If using the 0.5 lb optional ground lamb or beef, heat 1 tablespoon vegetable oil in a separate pan over medium-high heat. Add the meat and cook for 4-5 minutes until browned and cooked through. Drain any excess fat and set aside.
Add the 4 cloves minced garlic to the soup pot and cook for 30 seconds until fragrant. Then stir in the 0.5 cup chopped fresh parsley, 0.25 cup chopped fresh dill, and 0.25 cup chopped fresh cilantro. The herbs should wilt slightly but still maintain their vibrant color.
If you're not using meat, skip the browning step and just add the herbs directly to the soup. The herb combination is what gives ash reshteh its signature fresh, bright finish.
🥘 Step 4: Finish with Acid and Noodles
Add the 2 tablespoons lemon juice and 1 teaspoon salt to the soup. Taste and adjust seasoning—you might need a bit more salt depending on your broth. The lemon juice brightens all the flavors and balances the richness.
Bring the soup back to a gentle simmer, then add the 0.5 cup dried reshteh noodles. Cook for 3-4 minutes until the noodles are tender but still have a slight bite. The noodles should float to the surface when they're ready.
If you're using the browned meat, stir it back into the soup now. The noodles and meat will soak up some of the broth, so you might want to add a splash more broth if it seems too thick.
⏰ Step 5: Rest and Serve with Crunch
Remove the pot from heat and let the soup rest for 5 minutes. This resting time allows all the flavors to meld together beautifully. The soup will continue to thicken slightly as it sits.
Ladle the soup into bowls and serve immediately with a sprinkle of extra fresh herbs on top. The contrast of the silky lentil broth with the crispy fried onions and fresh herbs is what makes this dish so special. For extra crunch, you can even add a few more fried onion pieces on top before serving.
This soup tastes even better the next day as the flavors continue to develop, but it's so good fresh that you might not make it that long!
Pro Tips For Making Ash Reshteh Soup
- SOAK THE RESHTEH: I learned this the hard way—skipping the 15-minute soak in warm water turns your noodles into a mushy, gluey mess. Even if the package says "instant," give them a quick rinse and soak first, especially if you’re using the thicker variety.
- CARAMELIZE ONIONS LOW: Start high, but finish slow. After the onions turn golden, drop the heat to medium-low and let them cook for 10-12 minutes until deep amber. Rushing this step leaves your soup tasting flat—patience here makes the difference.
- SALT THE LENTILS: Add a pinch of salt to the lentils before they hit the boiling water. It prevents them from turning mealy later, and trust me, you’ll taste the difference. (Yes, even if you’re adding salt later—this is non-negotiable.)
- CHOP HERBS LAST: Stir in the parsley and dill right before serving. If you add them too early, they’ll turn bitter and lose their bright flavor. A handful of fresh herbs at the end keeps the soup vibrant and fresh-tasting.
Common mistakes when making your ash reshteh soup
Overcooking the Lentils
One of the most common mistakes is letting the lentils break down too much, turning your soup into a thick paste instead of a silky broth. I've seen this happen when people simmer the lentils for too long or at too high a temperature.
Keep the heat at a gentle simmer for exactly 15 minutes—any longer and you'll lose that beautiful texture. The lentils should be tender but still hold their shape, almost like al dente pasta. 🌱
Skipping the Onion Fry
Don't rush the caramelization of onions—this step is what gives ash reshteh its signature sweet depth. I've made this mistake too, thinking I could speed things up by cranking the heat. But those onions need 15-20 minutes on medium-low to develop that golden brown color and rich flavor.
If they're not properly caramelized, your soup will lack that essential sweetness that balances the herbs and spices.
Adding Herbs Too Early
Fresh herbs are the soul of this soup, but adding them too soon will make them wilt into oblivion. I learned this the hard way—when I added parsley, dill, and cilantro right at the beginning with the lentils, they turned to mush and lost all their vibrant color.
Always add the herbs in the final 3-4 minutes of cooking, just before serving if possible. This keeps their bright green color and fresh flavor that makes ash reshteh special. 🌿
Ignoring the Resting Time
I can't emphasize enough how important it is to let the soup rest for 5 minutes before serving. This might seem like a small detail, but it makes a world of difference. During this time, the flavors meld together and the soup thickens slightly, creating that perfect consistency.
Skipping this step means you'll miss out on that restaurant-quality texture that makes homemade ash reshteh truly special.
Using the Wrong Noodles
Persian reshteh noodles are thin and flat, designed to cook quickly and absorb flavor beautifully. I've seen people substitute with thick spaghetti or even ramen, which completely changes the texture. If you can't find reshteh noodles, thin rice noodles or angel hair pasta are the closest substitutes. Just
Overlooking the Lemon Juice
The final touch of 2 tablespoons lemon juice is crucial for brightening all the flavors in this soup. I've made ash reshteh without it, and while it's still good, it lacks that fresh, tangy finish that makes the dish truly shine. Add the lemon juice right before serving to keep the herbs vibrant and cut through the richness of the lentils and onions. Trust me, your taste buds will thank you. 🍋
Nutrition facts
Frequently asked questions
Can I make ash reshteh soup vegetarian?
This Persian dish is naturally adaptable. Simply omit the optional meat and increase the red lentils to 1.5 cups for extra heartiness. The flavor remains rich and satisfying without any animal products. Just ensure your broth is vegetable-based for a fully plant-powered version.
How do I store leftovers properly?
Store the soup in an airtight container in the fridge for up to 3 days. The flavors actually deepen overnight! For the fried onions, keep them in a separate container—they'll stay crispy for 2 days. When reheating, add a splash of water or broth to maintain that silky texture. Never reheat with the onions included to preserve their crunch.
What's the secret to getting the perfect lentil texture?
The key is simmering the lentils at a gentle low heat for exactly 15 minutes. They should be tender but still hold their shape—like al dente pasta. Overcooking turns them mushy, while undercooking leaves them too firm. Stir occasionally to prevent sticking, and avoid boiling vigorously which can break them down too quickly.
Can I make this soup in a slow cooker?
Yes, but with adjustments! Sauté the onions and spices first, then add everything to the slow cooker on low for 3-4 hours. Add the herbs and lemon juice in the last 30 minutes to preserve their freshness. The noodles should be added separately just before serving to prevent overcooking. The texture will be slightly different but still delicious.
Why does my soup taste bland?
Most likely, you need more acidity or salt. Add 1 extra tablespoon lemon juice and taste—this brightens all flavors. If still bland, add ½ teaspoon more salt or a pinch of ground black pepper. The caramelized onions should provide sweetness, but if they weren't browned enough, they might not balance the herbs properly.