Sourdough Lemon Garlic Soup is a delightful culinary creation that brings a refreshing twist to classic soup recipes. This light, Greek-inspired avgolemono soup combines tangy sourdough with bright lemon and mellow garlic for a creamy yet invigorating bowl. It’s the perfect dish for a cozy dinner, offering a unique flavor profile that will leave you wanting more. Let’s dive into how to whip up this comforting delight!
Why You’ll Love This Sourdough Lemon Garlic Soup
There are countless reasons to love this sourdough lemon garlic soup. First and foremost, it’s incredibly easy to prepare, making it an ideal choice for busy weeknights. The combination of flavors is truly comforting; the tangy lemon and savory garlic complement each other beautifully. Additionally, this soup is a healthy option, as it incorporates fresh ingredients and can be made vegetarian or even vegan. The use of sourdough bread adds a delightful texture and depth, making this dish a must-try. Plus, it’s a fantastic way to use up stale bread! Learn more about using sourdough in recipes.
Ingredients for Sourdough Lemon Garlic Soup
Gather these items:
- 4 cups chicken broth or vegetable broth
- 1/2 cup sourdough starter or 1 cup cubed stale sourdough bread
- 3 cloves garlic, minced
- 1/4 cup fresh lemon juice
- 2 large eggs
- 1 tablespoon olive oil
- Salt and freshly cracked black pepper to taste
- 1–2 tablespoons chopped fresh dill, parsley, or thyme
How to Make Sourdough Lemon Garlic Soup Step-by-Step
- Step 1: Heat olive oil in a heavy-bottomed pot over medium heat.
- Step 2: Add minced garlic and sauté for 1 to 2 minutes until fragrant and lightly golden.
- Step 3: Pour in broth and bring to a gentle simmer.
- Step 4: If using sourdough bread cubes, add and simmer for 10 minutes; if using starter, whisk it directly into the broth.
- Step 5: Optional: blend partially with an immersion blender for a smoother texture.
- Step 6: In a separate bowl, whisk eggs and lemon juice until frothy.
- Step 7: Temper the egg mixture by slowly whisking in 1 cup of hot broth.
- Step 8: Reduce heat to low and slowly stir in the tempered egg-lemon mixture, stirring constantly.
- Step 9: Cook over low heat for 2 to 3 minutes until the soup thickens, avoiding boiling.
- Step 10: Season with salt and pepper, stir in fresh herbs, and adjust consistency with additional warm broth if needed.
- Step 11: Serve garnished with lemon zest, cracked pepper, and a drizzle of olive oil alongside crusty sourdough bread.

Pro Tips for the Best Sourdough Lemon Garlic Soup
Keep these in mind:
- Use homemade broth for an extra depth of flavor.
- Adjust the lemon juice according to your taste preference for tanginess.
- For a vegan version, replace eggs with a cornstarch slurry.
- Blend the soup for a creamy texture or keep it chunky for added bite.
- Allow the soup to sit for a few minutes before serving to enhance the flavors.
Best Ways to Serve Sourdough Lemon Garlic Soup
This sourdough soup with lemon and garlic pairs perfectly with a slice of crusty sourdough bread for dipping. You could also serve it with a fresh green salad for a light meal or as an appetizer before a hearty main course. For a fancy touch, top your soup with a sprinkle of fresh herbs or a drizzle of olive oil. Check out more serving suggestions.
How to Store and Reheat Sourdough Lemon Garlic Soup
To store your sourdough lemon garlic soup, let it cool completely and transfer it to an airtight container. It can be refrigerated for up to 3 days. When reheating, warm it gently on the stovetop, adding a splash of broth to regain its creamy consistency. This soup is perfect for meal prep, as it tastes even better the next day!
Frequently Asked Questions About Sourdough Lemon Garlic Soup
What’s the secret to perfect Sourdough Lemon Garlic Soup?
The secret lies in using high-quality ingredients. Fresh garlic and ripe lemons enhance the flavor, while a good broth creates a rich base. Don’t rush the cooking process; allowing the soup to simmer gently will deepen the flavors.
Can I make Sourdough Lemon Garlic Soup ahead of time?
Absolutely! This soup is ideal for making ahead. Just prepare it as directed, store it in the fridge, and reheat when you’re ready to serve. The flavors will meld beautifully overnight.
How do I avoid common mistakes with Sourdough Lemon Garlic Soup?
To avoid curdling the eggs, temper them by gradually mixing in hot broth before adding them to the soup. Also, be careful not to let the soup boil after adding the egg mixture, as this can lead to separation.
Variations of Sourdough Lemon Garlic Soup You Can Try
There are plenty of delicious variations to explore! For a creamier version, add a splash of cream or coconut milk. You can also make a vegan sourdough lemon garlic soup by omitting the eggs and using a plant-based broth. Consider adding seasonal vegetables like spinach or peas for extra nutrients and flavor! Explore more variations here.
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Sourdough Lemon Garlic Soup: A Comforting Delight
- Total Time: 40 minutes
- Yield: 4 servings 1x
- Diet: Vegetarian
Description
A light, Greek-inspired avgolemono soup enriched with tangy sourdough, bright lemon, and mellow garlic for a creamy yet refreshing bowl.
Ingredients
- 4 cups chicken broth or vegetable broth
- 1/2 cup sourdough starter or 1 cup cubed stale sourdough bread
- 3 cloves garlic, minced
- 1/4 cup fresh lemon juice
- 2 large eggs
- 1 tablespoon olive oil
- Salt and freshly cracked black pepper to taste
- 1–2 tablespoons chopped fresh dill, parsley, or thyme
Instructions
- Heat olive oil in a heavy-bottomed pot over medium heat.
- Add minced garlic and sauté for 1 to 2 minutes until fragrant and lightly golden.
- Pour in broth and bring to a gentle simmer.
- If using sourdough bread cubes, add and simmer for 10 minutes; if using starter, whisk it directly into the broth.
- Optional: blend partially with an immersion blender for a smoother texture.
- In a separate bowl, whisk eggs and lemon juice until frothy.
- Temper the egg mixture by slowly whisking in 1 cup of hot broth.
- Reduce heat to low and slowly stir in the tempered egg-lemon mixture, stirring constantly.
- Cook over low heat for 2 to 3 minutes until the soup thickens, avoiding boiling.
- Season with salt and pepper, stir in fresh herbs, and adjust consistency with additional warm broth if needed.
- Serve garnished with lemon zest, cracked pepper, and a drizzle of olive oil alongside crusty sourdough bread.
Notes
- Prep Time: 10 minutes
- Cook Time: 30 minutes
- Category: Soup
- Method: Stovetop
- Cuisine: Greek
Nutrition
- Serving Size: 1 bowl
- Calories: 250
- Sugar: 2g
- Sodium: 600mg
- Fat: 10g
- Saturated Fat: 2g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 30g
- Fiber: 2g
- Protein: 10g
- Cholesterol: 100mg
Keywords: Sourdough Lemon Garlic Soup, Avgolemono, Greek Soup