Roasted Garlic Potato Leek Soup

Hearty roasted garlic potato leek soup served in a bowl, garnished with fresh herbs.

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This Roasted Garlic Potato Leek Soup is a warm hug in a bowl! With creamy potatoes and fragrant roasted garlic, it’s pure comfort food.

Trust me, that roasted garlic makes all the difference here. I love pairing it with some crusty bread for a delicious dip—perfect on a chilly day!

Making this soup is super easy! Just blend it all together and enjoy a bowl of cozy goodness. I often whip it up when I need something tasty in a hurry!

Key Ingredients & Substitutions

Leeks: These add a mild onion flavor that’s perfect for soup. If you can’t find leeks, green onions or shallots can work as substitutes, though the flavor will change slightly.

Potatoes: Starchy potatoes like Russets give the soup a creamy texture. You could use Yukon Golds for a buttery taste or even sweet potatoes for a twist on flavor.

Garlic: Roasting garlic mellows its sharpness and adds sweetness. If you’re short on time, you could use garlic powder instead, but it won’t have the same rich flavor.

Broth: Vegetable broth is great for a vegetarian version, while chicken broth adds more depth. Homemade broth, if available, always enhances the flavor!

Heavy Cream/Milk: For a lighter version, opt for milk or even a plant-based milk like almond or oat milk. If avoiding dairy, you can skip this or use coconut milk for a creamy texture.

How Do I Get the Best Flavor from Roasting Garlic?

Roasting garlic brings out its sweet, rich flavor that transforms any dish. Start by trimming the top and drizzling it with oil. Wrapping it in foil helps steam and soften the cloves. Bake at 400°F for 30-40 minutes.

  • Look for a golden brown color and a soft texture; this means it’s ready.
  • Let it cool slightly before squeezing out the cloves and tossing the skins.

This step is key for the smooth, delicious flavor in your soup! Enjoy using the roasted garlic in other dishes too; it makes a fabulous spread on bread!

How to Make Roasted Garlic Potato Leek Soup

Ingredients You’ll Need:

Vegetables:

  • 2 large leeks (white and light green parts), cleaned and sliced
  • 4 large potatoes, peeled and diced
  • 1 whole head of garlic
  • 1 medium onion, diced

Fats:

  • 3 tablespoons olive oil
  • 2 tablespoons butter

Liquids:

  • 4 cups vegetable or chicken broth
  • 1 cup heavy cream or milk (optional for creaminess)

Seasonings:

  • Salt and pepper to taste
  • Fresh thyme for garnish (plus extra for roasting)
  • Optional: crispy shallots or caramelized onions for garnish

How Much Time Will You Need?

This tasty soup will take about 15-20 minutes to prep and 50-60 minutes to cook, including roasting the garlic. After about an hour, you will have a warm, comforting bowl of soup ready to enjoy!

Step-by-Step Instructions:

1. Roast the Garlic:

Start by preheating your oven to 400°F (200°C). Slice the top off the head of garlic to expose the cloves. Drizzle it with 1 tablespoon of olive oil and wrap it tightly in foil. Place it in the oven and let it roast for 30-40 minutes until it’s soft and has a lovely, sweet aroma!

2. Sauté the Aromatics:

While the garlic is busy roasting, grab a large pot and heat 2 tablespoons of olive oil and the butter over medium heat. Add the diced onion and sliced leeks, cooking gently until they have softened but have not browned—this should take about 8-10 minutes.

3. Add Potatoes:

Now it’s time to add the diced potatoes to the pot! Stir everything together so it’s well mixed and the potatoes start soaking up all those delicious flavors.

4. Mix in Roasted Garlic:

After the garlic has roasted, take it out of the oven and let it cool for a minute. Squeeze the roasted garlic cloves out of their skins and add them to the pot. Discard any tough skins.

5. Add Broth and Seasonings:

Pour in the broth, and don’t forget to add a pinch of salt, pepper, and a few sprigs of fresh thyme into the mix. This will really elevate the flavor of your soup!

6. Simmer Until Tender:

Bring the pot to a boil, then reduce the heat to let it gently simmer. Cook until the potatoes are tender—this should take about 20 minutes, so you can relax and let the soup do its thing!

7. Blend for Smoothness:

Once your potatoes are nice and soft, remove the thyme sprigs. Use an immersion blender to puree the soup until it’s smooth and creamy. If you don’t have an immersion blender, carefully transfer the soup to a regular blender in batches, then return it to the pot.

8. Creamy Finish:

If you want a creamy soup, stir in the heavy cream or milk now. Taste your soup and adjust the seasoning with some extra salt and pepper if needed. Warm it through gently; you don’t want to boil it after adding the cream!

9. Garnish and Serve:

It’s time to serve! Ladle the hot soup into bowls and garnish with fresh thyme leaves and optional crispy shallots or caramelized onions for that extra crunch. Enjoy your comforting bowl of Roasted Garlic Potato Leek Soup!

Can I Use Different Types of Potatoes?

Yes, you can use different types of potatoes! While starchy potatoes like Russets are ideal for creaminess, Yukon Golds or waxy potatoes work too. Just keep in mind that the texture and flavor will vary slightly.

How Can I Make This Soup Vegan?

To make the soup vegan, simply use vegetable broth and substitute the heavy cream with a plant-based milk like almond or oat milk. You can also skip the butter or use a vegan butter alternative!

What Should I Do If the Soup Is Too Thick?

If you find the soup is thicker than you like, just add more broth or water a little at a time while stirring until it reaches your desired consistency. Warm it gently if it cools down.

How Long Can I Store Leftover Soup?

Store any leftovers in an airtight container in the refrigerator for up to 3 days. Reheat on the stove or in the microwave, adding a splash of broth or water to help loosen it up if needed.

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