Creamy Comfort: Recreating California Pizza Kitchen’s Potato Leek Soup at Home

There’s something about the Potato Leek Soup at California Pizza Kitchen that always hit the spot. I remember shivering on a particularly chilly evening in Chicago, ducking into a CPK, and ordering a steaming bowl. The rich, velvety texture and subtly sweet leek flavor warmed me from the inside out. For years, it was my go-to comfort food. Then, the unthinkable happened: it disappeared from the menu. I was devastated. But, as a chef, I knew there was only one solution: recreate it myself! This recipe captures the essence of that beloved soup, allowing you to enjoy it whenever the craving strikes.

Recipe Overview

• Prep Time: 25 minutes
• Cook Time: 30 minutes
• Total Time: 55 minutes
• Servings: 8
• Yield: About 8 cups
• Dietary Type: Vegetarian

Ingredients

• ¾ lb leeks (2 large)
• 1 lb baking potato, peeled and cut into ½-inch chunks (2 medium)
• 2 teaspoons kosher salt
• ¾ teaspoon dried oregano
• ¾ teaspoon dried thyme
• ¼ teaspoon ground black pepper
• 1 bay leaf
• 2 tablespoons extra virgin olive oil
• 1 teaspoon soy sauce
• 1 ⅓ cups chicken broth
• 1 ½ cups half-and-half (or light cream)
• ½ cup whipping cream (or heavy whipping cream)
• 2 tablespoons green onions, thinly sliced, green part only (for garnish)

Equipment Needed

• 4-quart saucepan
• Nonstick 12-inch skillet
• Colander
• Blender or immersion blender

Instructions

1. Begin by prepping the leeks. Cut off the roots and trim the dark green tops. Discard any tough outer leaves. Cut each leek lengthwise in half, then crosswise into ¼-inch slices.

2. Thoroughly rinse the sliced leeks in a large bowl of cold water. Swish them around vigorously to remove any sand or grit. Transfer the leeks to a colander to drain, leaving the sand in the bottom of the bowl. Repeat this rinsing process, changing the water several times, until all traces of sand are gone. This step is crucial for a smooth, grit-free soup.

3. In a 4-quart saucepan, combine the potatoes (peeled and cut into ½-inch chunks), kosher salt, dried oregano, dried thyme, ground black pepper, bay leaf, and half of the rinsed leeks. Add 3 cups of water.

4. Cover the saucepan and heat over high heat until the mixture comes to a boil. Once boiling, reduce the heat to low. Cook for 5 minutes, or until the potatoes are very tender and easily pierced with a fork.

5. Remove the bay leaf from the saucepan and discard it.

6. While the potatoes are cooking, prepare the remaining leeks for caramelization. In a nonstick 12-inch skillet, heat the extra virgin olive oil over medium heat until it shimmers. Add the remaining leeks (the ones you didn’t add to the potato mixture).

7. Cook the leeks in the skillet for 10 to 12 minutes, or until they are tender and starting to caramelize, stirring frequently. This process draws out their natural sweetness and adds depth of flavor to the soup.

8. Stir in the soy sauce and cook for 1 to 2 minutes more, or just until the leeks are evenly browned, stirring constantly. Watch carefully to prevent burning. The soy sauce adds a savory umami note that complements the sweetness of the caramelized leeks.

9. Transfer the caramelized leek mixture to the saucepan with the cooked potato mixture. Stir in the chicken broth.

10. In batches, ladle the potato mixture into a blender. Cover the blender, but remove the center part of the cover to allow steam to escape (this prevents pressure buildup). Blend until completely pureed and smooth. Alternatively, use an immersion blender directly in the saucepan to puree the soup. Be careful when using either method, as hot liquids can splatter.

11. Pour the pureed soup into a large bowl. Repeat with the remaining mixture until all of the soup is pureed.

12. Return the pureed soup to the same saucepan. Stir in the half-and-half (or light cream) and whipping cream (or heavy whipping cream).

13. Heat the soup over low heat just until heated through, stirring occasionally. Be careful not to boil the soup, as this can cause the cream to separate.

14. Serve the soup hot, garnished with thinly sliced green onions. Alternatively, you can cover the soup and refrigerate it for at least 4 hours, or up to 24 hours, to serve chilled later.

Expert Tips & Tricks

• Don’t skip the thorough rinsing of the leeks! Sand and grit can ruin the texture of the soup.
• Caramelizing the leeks is key to the flavor. Don’t rush this step; let them slowly brown and sweeten.
• Use an immersion blender for easy pureeing. It’s less messy than transferring hot soup to a regular blender. Just be careful of splattering.
• For a richer flavor, consider using homemade chicken broth.
• If you accidentally burn the leeks slightly, don’t panic! A touch of bitterness can actually add complexity to the soup.
• If the soup is too thick, add a little more chicken broth or cream to reach your desired consistency.

Serving & Storage Suggestions

Serve this Potato Leek Soup hot, garnished with a sprinkle of fresh, thinly sliced green onions for a pop of color and freshness. A swirl of cream or a drizzle of olive oil also adds visual appeal. Crusty bread or a grilled cheese sandwich makes a perfect accompaniment.

Leftover soup can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, gently warm it on the stovetop over low heat, stirring occasionally to prevent sticking. You can also reheat it in the microwave in 1-minute intervals, stirring in between. The soup can also be frozen for up to 2 months. Thaw it in the refrigerator overnight before reheating. Note that the texture may change slightly after freezing and thawing.

Nutritional Information

Nutrient	Amount per Serving	% Daily Value
Calories	223.7 kcal	N/A
Calories from Fat	130 kcal	N/A
Total Fat	14.5 g	22%
Saturated Fat	7.2 g	36%
Cholesterol	37.2 mg	12%
Sodium	640.5 mg	26%
Total Carbohydrate	20.3 g	6%
Dietary Fiber	1.9 g	7%
Sugars	2.4 g	N/A
Protein	4.3 g	8%

Note: Nutritional information is an estimate and may vary based on specific ingredients and preparation methods.

Variations & Substitutions

• Vegan Version: Substitute the chicken broth with vegetable broth, the half-and-half and whipping cream with unsweetened plant-based milk (such as oat milk or cashew milk), and ensure the soy sauce used is gluten-free.
• Gluten-Free: This recipe is naturally gluten-free.
• Add Herbs: Experiment with other herbs such as fresh chives, parsley, or dill for a different flavor profile.
• Add Vegetables: For a heartier soup, add other vegetables such as carrots, celery, or parsnips along with the potatoes.
• Spicy Kick: Add a pinch of red pepper flakes or a dash of hot sauce for a touch of heat.

FAQs (Frequently Asked Questions)

Q: Can I make this soup ahead of time?
A: Absolutely! In fact, the flavors often meld together even better when the soup sits for a few hours or overnight in the refrigerator.

Q: Do I have to use a blender?
A: While a blender or immersion blender is recommended for the smoothest texture, you can also use a food processor or potato masher. The texture will be slightly chunkier, but still delicious.

Q: Can I use different types of potatoes?
A: While baking potatoes are recommended for their starchiness, you can also use Yukon Gold potatoes for a creamier texture. Avoid using waxy potatoes, as they won’t break down as easily.

Q: How do I prevent the cream from curdling?
A: The key is to heat the soup gently over low heat and avoid boiling it after adding the cream.

Q: Can I add cheese to this soup?
A: Absolutely! A sprinkle of grated Parmesan cheese or crumbled goat cheese would be a delicious addition.

Final Thoughts

This Potato Leek Soup is a comforting and flavorful dish that’s perfect for any occasion. Whether you’re looking for a cozy weeknight meal or a sophisticated starter for a dinner party, this recipe is sure to impress. I hope you enjoy recreating this California Pizza Kitchen classic in your own kitchen. Don’t be afraid to experiment with variations and make it your own. And, most importantly, share your culinary creations with friends and family! Bon appétit!