The Best Fluffy Pancakes recipe you will fall in love with. Full of tips and tricks to help you make the best pancakes.
Velvety Preserved Lemon Potato Soup with Crispy Olive Crumble
1. INTRODUCTION
Preserved lemon potato soup is my love letter to the incredible flavor combinations found in North African kitchens, but reimagined in a way I haven’t seen anywhere else online. We all know preserved lemons and olives go together in tagines, but when you blend them into a creamy soup, something magical happens.
The salt-cured lemons provide a deep, citrusy “umami” that cuts right through the heaviness of the starch, creating a soup that feels rich but tastes bright and light. But the real star here is the “Olive Crumble.” By dehydrating chopped black olives in the oven for just a few minutes, they transform into intense, crunchy, salty bits that mimic the texture of bacon bits—completely vegan and addictive.
This recipe is simple, affordable, and uses ingredients you likely have right now, but the result tastes like something from a high-concept modern restaurant. It is savory, zesty, and unlike any potato soup you have tried before.
2. INGREDIENTS
The Soup Base
- Potatoes: 4 large (Yukon Gold or similar waxy variety), peeled and cubed.
- Leeks: 2 large, white and light green parts only, sliced and washed well.
- Preserved Lemon: 1 whole lemon (rind only, pulp discarded), rinsed and chopped.
- Garlic: 3 cloves, minced.
- Turmeric: 1/2 teaspoon (for that golden color).
- Vegetable Broth: 4 cups.
- Olive Oil: 2 tablespoons.
- Black Pepper: 1/2 teaspoon (skip salt until the end, as the lemon is salty).
The Crispy Olive Crumble
- Black Olives: 1/2 cup (pitted), preferably Kalamata or Moroccan oil-cured.
- Olive Oil: 1 teaspoon.
The Garnish
- Fresh Cilantro or Parsley: Chopped.
- Cream: A splash of heavy cream or coconut milk (optional).
3. PREPARATION TABLE
| Feature | Details |
| Servings | 4 Bowls |
| Prep Time | 15 Minutes |
| Cook Time | 25 Minutes |
| Total Time | 40 Minutes |
4. STEP-BY-STEP PREPARATION
Step 1: Make the Olive Crumble
Preheat your oven to 375°F (190°C). Finely chop the black olives until they look like coarse breadcrumbs. Pat them very dry with a paper towel to remove moisture. Toss them with 1 teaspoon of olive oil. Spread them on a parchment-lined baking sheet and bake for 10–12 minutes, stirring once, until they look dried out and crispy. Set aside to cool (they get crunchier as they cool).
Step 2: Sweat the Aromatics
In a large soup pot, heat 2 tablespoons of olive oil over medium heat. Add the sliced leeks and cook for 5–8 minutes until soft and sweet. Do not let them brown too much. Add the garlic and turmeric, stirring for 30 seconds until fragrant.
Step 3: Simmer the Base
Add the cubed potatoes and the chopped preserved lemon rind to the pot. Pour in the vegetable broth. Bring the mixture to a boil, then reduce the heat to low. Cover and simmer for 15–20 minutes, or until the potatoes are fork-tender and falling apart.
Step 4: Blend to Velvet
Remove the pot from the heat. Using an immersion blender (or transferring carefully to a standard blender), blend the soup until it is completely smooth and silky. The turmeric will give it a beautiful golden yellow color.
Step 5: Season and Adjust
Taste the soup before adding salt. The preserved lemons and broth are salty. If it needs creaminess, stir in a splash of cream or coconut milk now. If it’s too thick, add a little water.
Step 6: Serve
Ladle the hot soup into bowls. Generously sprinkle the crispy black olive crumble over the center. Top with fresh cilantro.
5. TIPS & VARIATIONS
The Preserved Lemon Rule
Only use the skin (rind). The fleshy inside is too salty and mushy for this soup. Rinse the rind quickly under cold water to remove excess brine before chopping.
Olive Crumble Hack
If you don’t want to turn on the oven, you can “dry fry” the chopped olives in a non-stick skillet over medium-low heat for about 5–7 minutes. Watch them closely so they don’t burn.
Protein Add-In
This soup is light. To make it a full meal, you can add shredded rotisserie chicken or stirred-in cooked lentils after the blending step.
Texture Variation
If you like a chunky soup, scoop out about 1 cup of the cooked potatoes before blending, then stir them back in at the end.
6. SERVING SUGGESTIONS
- Bread: A piece of soft focaccia is perfect for scooping up the olive crumble.
- Topping: A swirl of plain yogurt adds a nice cooling contrast to the warm turmeric.
- Side Dish: Roasted carrots or a simple green salad with vinaigrette.
7. WHY YOU’LL LOVE THIS RECIPE
- Unique Flavor Profile: It combines the comfort of potato soup with the exotic tang of Moroccan citrus.
- The “Crumble”: The crispy olive topping is a texture game-changer that you will want to put on everything.
- Visually Stunning: The bright yellow soup with the black speckles of olive looks like art.
- Simple Ingredients: Despite the complex taste, it uses standard root vegetables and pantry jars.
8. FAQs
1. Is preserved lemon potato soup sour?
It is not “sour” like biting into a lemon. Cooking the preserved lemon mellows it out, leaving a deep, floral citrus flavor that brightens the potatoes.
2. Can I use regular lemons?
No, the flavor won’t be the same. Fresh lemon juice is acidic, while preserved lemon is fermented and savory. If you must, use lemon zest, but the depth will be missing.
3. Is this recipe vegan?
Yes, the base recipe is 100% vegan. Just ensure you don’t add dairy cream at the end (use coconut milk or leave it plain).
4. Can I use onions instead of leeks?
Yes, a yellow onion works fine. Leeks are just slightly sweeter and milder, which lets the lemon shine.
5. What kind of olives work best?
Use high-quality black olives like Kalamata, Niçoise, or oil-cured Moroccan olives. Do not use the bland canned sliced black olives; they have no flavor to concentrate.
6. Can I freeze this soup?
Yes, potato soups freeze relatively well. The texture might separate slightly upon thawing, but a quick blitz with the blender will bring it back together.
7. Is turmeric necessary?
It adds a lovely earthy note and that vibrant yellow color, but you can omit it if you don’t have it. The soup will just be paler.
8. Can I use sweet potatoes?
You can, but the sweetness of the orange potato might fight with the lemon. White or yellow potatoes are the best canvas for these flavors.
9. How long does the olive crumble last?
Store the crumble in a small airtight container at room temperature. It stays crispy for about 2 days.
10. Is this soup gluten-free?
Yes, naturally gluten-free. Just check your broth labels.
11. What if I accidentally made it too salty?
Add another cubed potato and simmer for 10 more minutes (then blend), or add a splash of water and cream to dilute the saltiness.
12. Where can I buy preserved lemons?
You can find them in the international aisle of most supermarkets, at Middle Eastern grocery stores, or easily make them yourself with lemons and salt.
13. Do I need to peel the potatoes?
For a velvety soup, yes. If you leave the skins on, the soup will be rustic and slightly gritty, which is fine if you prefer that texture.
14. Can I use an air fryer for the olives?
Yes! Air fry the chopped olives at 350°F for 4–5 minutes. Check them often as they fly around and burn fast.
15. What is the benefit of preserved lemons?
Fermentation increases the bioavailability of nutrients. You can read more about Lemon pickle.
