Hot Potato Leek Soup with Crispy Lardons

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A rich, velvety potato leek soup topped with crispy lardons and a drizzle of cream, perfect for chilly evenings. This french-inspired one pot ready in about 70 minutes pairs medium, diced potatoes, diced onion, diced carrots for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 210 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 30 min Cook: 40 min Serves 4 French cuisine 210 cal/serving
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Ingredients

Instructions

  1. Step 1: In a large pot, sauté 1/2 cup diced onion in 1 tbsp butter over medium heat until softened, about 5 minutes.
  2. Step 2: Add leeks, carrots, and potatoes. Cook for 3 minutes, then stir in 4 cups chicken broth.
  3. Step 3: Bring to a boil, then reduce heat and simmer for 20-25 minutes until vegetables are tender.
  4. Step 4: Puree the soup in a blender until smooth. Stir in 1/2 cup heavy cream and 1/2 tsp thyme. Season with salt and pepper.
  5. Step 5: Serve hot, garnished with crispy lardons.

Equipment for this recipe

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Frequently asked questions

How long does Hot Potato Leek Soup with Crispy Lardons take to make?

Total time is about 70 minutes (30 min prep + 40 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Hot Potato Leek Soup with Crispy Lardons?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep medium, diced potatoes from drying out.

Can I substitute ingredients in Hot Potato Leek Soup with Crispy Lardons?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Hot Potato Leek Soup with Crispy Lardons for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Hot Potato Leek Soup with Crispy Lardons?

French one pot like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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