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Potato Leek Soup for St. Patrick’s Day (Gluten- and Dairy-Free)

I’ll never forget the first time I tried potato leek soup.

I was 16 and staying at a friend’s house overnight. My friend’s mom was – and still is – a really great home cook, so I always knew that when we ventured into her kitchen for a late-night snack, I was in for something really, really good. On this particular night, my friend popped some popcorn, pulled out a roll of slice and bake cookie dough, preheated a pan and heated up the family’s dinner leftovers: The creamiest, most savory and delicious soup I’d ever tasted. “What IS this?” I asked, to which my friend nonchalantly replied, “potato leek soup!” It was absolute heaven.

More than 20 years later, I’ve been dreaming about comfort foods that are gluten-and-dairy-free, and this soup immediately came to mind. After some trial and error, success! To me, it tastes just like the original, minus the butter and heavy cream. With a green salad and a crisp glass of white wine, it’s comfort in a bowl.

Serve it as part of your St. Patrick’s Day feast, and everyone who eats it is sure to feel lucky!

Please note: This post includes affiliate links to featured products for your convenience. If you make a purchase using one of the links, I may receive a small commission, at zero extra cost to you. Win-win!

Potato Leek Soup

5 from 1 vote
Print Pin Rate
Servings: 4

Equipment

  • Small bowl
  • Medium Glass bowl
  • Stockpot
  • Immersion blender

Ingredients

  • 3 large leeks, chopped
  • 1 cup gluten-free, dairy-free, soy-free oat milk (I used Oatly)
  • 5 tbsp Soy-Free Earth Balance, divided
  • 1 clove of garlic, finely chopped
  • 4 large Russet potatoes, peeled and chopped into one-inch pieces
  • 6 cups chicken broth (my favorite is Kitchen Basics)
  • 1 bay leaf
  • 1 tsp dried thyme
  • 1 tsp salt

Optional Garnish

  • black pepper to taste
  • snipped chives

Instructions

  • Roughly chop the white and light green parts of the leeks, placing them into a medium glass bowl. Cover the leeks with cold water and allow them to soak for 5 minutes, until the grit falls to the bottom. Remove the leeks to a towel and squeeze out as much water as you can.
  • Melt 1 tbsp Earth Balance and combine with rice milk in a small bowl and set aside.*
  • Melt the remaining 4 tbsp of Earth Balance over medium in a large stockpot. Add the leeks and garlic and cook until fragrant and soft but not brown, about 8 minutes.
  • Add the potatoes, broth, bay leaf, dried thyme, salt and a couple of pinches of black pepper and bring the contents to a boil. Cover, turn the heat down to medium-low and gently simmer for about 15 minutes, or until the potatoes break easily when pierced with a fork.
  • Pull out the bay leaf, then puree the soup with an immersion blender right in the pot, or in batches in a blender or VitaMix; return to the pot. Add the oat milk and Earth Balance mixture, stir to combine and heat through. Taste and add more salt and pepper if needed.
  • Ladle into bowls and garnish with chives or more dried thyme.

Notes

*Note: If your family does not have nut allergies, you can substitute one cup of almond or cashew milk for the rice milk and Earth Balance mixture.
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4 thoughts on “Potato Leek Soup for St. Patrick’s Day (Gluten- and Dairy-Free)”

  1. Potato leek soup used to be my favorite until I couldn’t eat dairy anymore. I made mine using a bechamel sauce base and it was divine… I think the secret was taking it off of the fire and letting it steep with the peppercorns for 20 minutes with the lid on. I’m so excited to try this allergen-friendly version!! 😀

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Liz Fetchin.

Hey there, I'm Liz!

As a former food editor and everyday home cook, I’ve spent the past 15+ years testing, tasting and saving delicious, Octofree recipes for my family. It’s with lots of love that I share the best of the bunch with you, along with tips and tricks I’ve learned along the way.

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