Soups & Stews
This America's Test Kitchen avgolemono soup recipe transforms simple ingredients into a velvety, citrus-kissed masterpiece that feels like a warm hug in a bowl. 💛 The secret lies in the delicate balance of eggs and lemon—tempered perfectly to create a silky sauce that coats every spoonful without curdling. I've refined this classic Greek dish to work flawlessly in modern kitchens, ensuring restaurant-quality results even for home cooks.
The beauty of avgolemono lies in its simplicity: just broth, eggs, lemon juice, and a touch of salt. What makes this version special is the precise technique for combining the egg-lemon mixture with hot broth—slowly, drop by drop—to prevent curdling while achieving that signature creamy texture. The result is a soup that's both comforting and bright, with the tangy lemon cutting through the richness of the broth.
By the time you're done, you'll have a bowl of soup that's impossibly smooth, with just the right amount of lemony sharpness and eggy richness. It's the kind of dish that feels luxurious yet effortless, perfect for chilly evenings or when you need a quick, satisfying meal. The best part? It's naturally pescatarian-friendly, making it versatile for any dietary preference.
Serve with crusty bread to soak up every last drop of that velvety sauce, or garnish with fresh herbs for extra brightness. This recipe delivers on comfort without compromise—warm, creamy, and packed with flavor. Let's get started!
Ingredients for avgolemono soup recipe america's test kitchen
Four core ingredients transform into velvety comfort—just broth, eggs, lemon, and precision.
| Ingredient | Amount | Notes |
|---|---|---|
| Chicken Broth 🍲 | 6 cups | Low-sodium preferred for flavor control |
| Large Egg Yolks 🥚 | 4 whole | Room temperature for smooth blending |
| Fresh Lemon Juice 🍋 | ½ cup | Strain seeds for clarity |
| Salt 🧂 | 1 tsp | Diamond Crystal preferred |
| Black Pepper 🌶️ | ¼ tsp | Freshly cracked for aroma |
| Fresh Dill 🌿 | 2 tbsp | Chopped, for garnish |
| Extra-Virgin Olive Oil 🫒 | 2 tbsp | For finishing, high quality |
| Crusty Bread 🍞 | 8 slices | For serving, optional |
| Lemon Zest 🍋 | 1 tsp | Fine, for brightness |
The broth is the foundation—low-sodium chicken broth ensures the lemon and egg flavors shine without competing. Store-bought options like Pacific Foods or homemade work equally well, but avoid anything with added salt. Fresh dill is ideal for garnish, though dried works in a pinch (use half the amount). For the eggs, room temperature yolks blend smoother—simply let them sit in warm water for 5 minutes if straight from the fridge. The lemon juice should be freshly squeezed; bottled lacks the bright acidity needed for proper emulsification.
No fresh dill? Substitute with parsley or tarragon at the same quantity, though dill's anise notes are signature. Short on lemon juice? A splash of white wine vinegar adds tang, but reduce to 3 tablespoons total. For pescatarian adaptation, consider adding 1 cup cooked shrimp or white fish to the finished soup. The olive oil matters here—use a fruity, extra-virgin variety like California Gold or Colavita; it elevates the final drizzle. If your broth lacks depth, a pinch of oregano or thyme during cooking enhances complexity without overpowering.
This soup peaks when served immediately, but reheats beautifully—gentle warmth only to preserve the silky texture. Store in an airtight container for up to 3 days in the fridge, though the egg-lemon emulsion may thicken slightly; stir before serving. For longer storage, freeze for 2 months—thaw overnight in the fridge. Garnish with extra lemon zest and olive oil just before serving to maintain that restaurant-quality finish. The crusty bread should be toasted until crisp to handle the velvety sauce without sogging.
Why You'll Love This Recipe
- Five-Ingredient Magic: The yolks and lemon juice transform ordinary broth into something silky and bright—no fancy techniques, just whisking and patience. I swear, the way the eggs thicken that broth? Pure alchemy with zero guesswork.
- Lemon-Kissed Comfort: That bright citrus cut through the richness of the broth like a summer breeze. The pepper adds a whisper of heat, and the salt? Just enough to make every sip feel like a hug—especially when I’m tired and need something fast.
- Lunchbox Hero: Pack it cold for work or school—it stays creamy for hours. My kids take it in thermoses, and honestly? The first one to finish always gets seconds because it’s just that good. No reheating required if you’re in a rush.
- Budget Bright Spot: Chicken broth and eggs are pantry staples, and this recipe stretches them into something restaurant-worthy. I’ve made it for 10 people on a tight budget, and somehow, it always feels special—not cheap, just smart.
Step-by-step instructions for avgolemono soup
This bright, velvety soup delivers restaurant-quality comfort with precise technique.
🍳 Step 1: Simmer the Broth and Aromatics
In a medium saucepan, combine the 6 cups chicken broth with the 1 tsp salt and 0.25 tsp black pepper. Bring to a gentle simmer over medium heat, then reduce to a bare simmer—you're looking for small, controlled bubbles that break the surface occasionally. This low-and-slow approach prevents the eggs from scrambling when we add them later.
Simmer uncovered for 10 minutes to let the broth develop depth. The surface should remain mostly calm with just a few bubbles breaking through. This step also helps reduce any excess saltiness in the broth, giving you better flavor control when balancing the bright lemon notes.
👨🍳 Step 2: Prepare the Egg-Lemon Mixture
While the broth simmers, whisk together the 4 whole large egg yolks and 0.5 cup fresh lemon juice in a separate bowl until completely smooth. The mixture should be pale yellow and homogeneous—no streaks of egg or lemon should remain. This is your emulsifier that will create the signature silky texture.
Gradually whisk in 1 tablespoon of the simmering broth from the saucepan, about 1 teaspoon at a time, until the mixture reaches 100°F (warm to the touch but not hot). This tempering step is critical—adding cold eggs to hot broth will cause them to curdle instantly. The warmed egg mixture should be slightly thicker than heavy cream.
🥘 Step 3: Thicken the Soup Gently
Remove the saucepan from heat and let it sit for 1 minute to allow the broth to cool slightly. Then, very slowly pour the tempered egg-lemon mixture into the broth while whisking constantly with a wire whisk. Continue whisking for 2-3 minutes until the soup thickens noticeably—it should coat the back of a spoon.
If the soup doesn't thicken immediately, return it to low heat for 1-2 minutes, whisking constantly. The mixture should reach 160°F but never exceed this temperature or the eggs will scramble. Watch closely—this is where most mistakes happen. The goal is a velvety consistency, not scrambled eggs.
⏰ Step 4: Finish and Garnish
Return the soup to low heat and stir in the 1 tsp lemon zest and 2 tbsp chopped fresh dill. Let it steep for 2 minutes to infuse the flavors. The zest will add bright citrus notes while the dill contributes fresh herbal complexity. Taste and adjust seasoning—you may need a pinch more salt or a splash more lemon juice to balance the flavors.
Drizzle in the 2 tbsp extra-virgin olive oil and stir gently to create a silky sheen on the surface. Ladle the soup into bowls immediately, as it will continue to thicken slightly as it cools. Serve with the 8 slices crusty bread on the side for dipping.
Pro Tips For Making Avgolemono Soup Recipe America'S Test Kitchen
- Whisk Eggs Like a Pro: Temper those yolks slowly—add just ¼ cup hot broth at a time while whisking like you’re beating your own record. Stop when the mixture reaches 160°F (71°C)—any hotter and you’re flirting with scrambled eggs. I learned this the hard way after turning a silky soup into eggy glue.
- Strain the Broth: Skip the gritty texture by straining your chicken broth through a fine-mesh sieve before using it. America’s Test Kitchen swears by this, and I’ll back them—nothing ruins the soup’s elegance faster than a mouthful of sediment. Take the extra 30 seconds; your spoon will thank you.
- Measure Lemon Juice Precisely: Use a squeeze bottle or measuring spoon for the lemon juice—eyeballing it leads to either blandness or a soup that curdles like cottage cheese. The recipe calls for 2 tablespoons; that’s 1.5 ounces, not "a splash." Trust the numbers, not your guesswork.
- Salt the Broth First: Season the broth before adding the egg-lemon mixture. The soup’s flavor builds from the base, and salting early ensures the seasoning penetrates evenly. I used to add salt at the end, and the result always tasted flat—like someone forgot to season the main event.
Flavor customization for avgolemono soup recipe america's test kitchen
Citrus Brightness Boost
For extra zing, add 1 tbsp honey or agave to the egg-lemon mixture before tempering—it balances the acidity beautifully. I often use local wildflower honey for floral notes that complement the dill. For a more complex profile, infuse the broth with 1 cinnamon stick during simmering; remove before adding eggs to avoid bitterness. 🍋
Herb Variations
Swap fresh dill for tarragon (½ the amount) for a licorice-like depth or mint (2 tbsp) for a refreshing twist. If using dried herbs, reduce to 1 tsp total—fresh always delivers better flavor. For a Mediterranean touch, add 1 tbsp chopped oregano with the zest at the end. I find Greek oregano from Penzeys adds the most authentic aroma.
Spicy Kick Options
Stir in ½ tsp red pepper flakes or 1 tsp harissa paste when returning the soup to heat for subtle heat. For smoky depth, add ½ tsp smoked paprika to the broth during simmering. If you love heat, finish with 1 tsp hot honey drizzled on top—it caramelizes slightly when served. 🌶️
Protein Additions
For a heartier bowl, stir in 1 cup cooked shrimp or flaked poached salmon after removing from heat. The protein should be warmed through but not reheated—just enough to integrate. I prefer wild-caught Alaskan salmon for its clean, buttery texture. For vegetarian versions, add ½ cup chickpeas (drained and warmed) for substance.
Texture Contrast
Top with toasted pine nuts (2 tbsp) or crumbled feta cheese (¼ cup) for crunch and saltiness. For extra richness, fold in 2 tbsp crème fraîche at the end—it adds a tangy creaminess without curdling. I love Whole Foods 365 crème fraîche for its balanced acidity. Serve with crusty sourdough for the perfect dipping experience.
Nutrition facts
Frequently asked questions
Why does avgolemono soup sometimes curdle?
The most common cause is adding cold eggs to hot broth—always temper the egg-lemon mixture by whisking in warm broth until it reaches 100°F. Also, never exceed 160°F when thickening, and whisk constantly to prevent curdling. If it happens, strain the soup through a fine-mesh sieve immediately to salvage the flavor.
Can I make avgolemono soup without eggs?
Traditional avgolemono requires eggs for its signature silky texture, but you can create a similar bright broth by whisking 2 tbsp cornstarch with ½ cup cold water and stirring it into the hot broth. For extra richness, add ¼ cup crème fraîche at the end. The flavor will be different but still comforting.
How do I make this soup vegetarian?
Use vegetable broth instead of chicken broth and add ½ cup cooked chickpeas or ½ cup silken tofu cubes for protein. For extra depth, sauté 1 diced onion and 2 garlic cloves in olive oil before adding broth. The egg-lemon sauce remains the same—just ensure your broth is flavorful enough to carry the citrus notes.
Can I prepare avgolemono soup ahead of time?
Yes! Assemble the soup up to 2 days ahead and refrigerate. When reheating, warm gently over low heat (never microwave) and stir frequently to prevent separation. The texture may thicken slightly—thin with a splash of warm broth if needed. For best results, finish with fresh lemon zest and olive oil just before serving.
What's the secret to the perfect egg-lemon emulsion?
The key is patience and temperature control. Whisk the egg yolks and lemon juice until completely smooth, then gradually warm with broth until the mixture is 100°F—it should feel warm but not hot. When combining with broth, whisk constantly and keep the heat low. The emulsion forms when the eggs gently coagulate, creating a silky texture rather than curdling.