Velvety Irish Potato Leek Soup with Fresh Thyme

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

A smooth and comforting Irish potato leek soup enriched with fresh thyme and a touch of cream, perfect for chilly days. This irish-inspired st. patrick’s day (vegetarian) ready in about 45 minutes pairs tablespoons unsalted butter, vegetable broth, heavy cream for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 220 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.

★ 4.4 (14 ratings) Prep: 10 min Cook: 35 min Serves 4 Irish cuisine 220 cal/serving
Plan a meal with the AI →

Ingredients

Instructions

  1. Step 1: In a large pot, melt 3 tablespoons unsalted butter over medium heat. Add 3 cups sliced leeks and sauté for 7-8 minutes, stirring occasionally, until leeks are soft and fragrant but not browned.
  2. Step 2: Add 3 cups diced russet potatoes and stir to coat with butter and leeks for 2 minutes.
  3. Step 3: Pour in 4 cups vegetable broth and add 2 fresh thyme sprigs. Bring to a boil, then reduce heat to low and simmer gently for 20-25 minutes until potatoes are very tender.
  4. Step 4: Remove thyme sprigs and use an immersion blender to puree the soup until smooth and velvety. Alternatively, carefully transfer in batches to a blender and puree.
  5. Step 5: Stir in 1/2 cup heavy cream, and season with 1 teaspoon salt and 1/2 teaspoon white pepper. Warm for 5 minutes over low heat, stirring gently.
  6. Step 6: Ladle into bowls and garnish with 2 tablespoons finely chopped chives for a fresh finish.

Frequently asked questions

How long does Velvety Irish Potato Leek Soup with Fresh Thyme take to make?

Total time is about 45 minutes (10 min prep + 35 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 Velvety Irish Potato Leek Soup with Fresh Thyme?

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 tablespoons unsalted butter from drying out.

Can I substitute ingredients in Velvety Irish Potato Leek Soup with Fresh Thyme?

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 Velvety Irish Potato Leek Soup with Fresh Thyme 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.

Is Velvety Irish Potato Leek Soup with Fresh Thyme vegetarian?

Yes — this recipe is tagged vegetarian based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.

What others are saying