Lentil Soup

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Brimming with a wholesome mix of veggies, lentils, and just the right amount of bacon, this hearty lentil soup is the perfect antidote to a chilly day.

bowl of lentil soup.

Whether you’re looking to eat healthier or beat the cold weather doldrums, this smoky lentil soup teeming with vegetables is just the ticket. It’s a bit more sophisticated than your standard lentil soup, thanks to the addition of bacon and the use of French green lentils, or lentilles du Puy. While common brown or green lentils will work, French lentils are loved by chefs for their earthy, peppery flavor and sturdy texture. They hold their shape when cooked, thickening the soup without turning it to sludge. If you’ve ever had lentil soup so thick you could stand a spoon in it, you will appreciate the difference! (They are also wonderful when used in lentil salad.)

A bit of bacon infuses the soup with smoky depth, but if you don’t eat pork or would like to make the soup vegetarian, it’s easy to omit. Just add a pinch of smoked paprika at the end for hint of smoky flavor. Either way, you’re in for a bowl of pure comfort.

“This is a go-to winter recipe. Hearty, but elegant. Add crusty bread and it’s amazing–even better the next day.”

Kelly McBride

What You’ll Need To Make Lentil Soup

lentil soup ingredients.
  • Bacon: Adds a smoky depth to the soup’s flavor. To make the bacon easy to chop, wrap the slices in plastic wrap and put them in the freezer for about 15 minutes. They will be a bit stiffer when you remove them and much easier easier to cut.
  • Onion, celery, carrots, garlic: The classic vegetable base provides sweetness, depth, and aromatics to the soup.
  • Canned diced tomatoes: Introduce a slight acidity and richness, balancing the overall flavor of the soup.
  • Chicken broth: Serves as the liquid foundation of the soup, offering a rich, savory background. For a vegetarian option, vegetable broth can be used instead.
  • Lentils: The star of the soup, lentils are nutritious and hearty, thickening the soup while adding texture and protein. While common brown or green lentils will work, French lentils are preferred for their peppery flavor and firm texture that holds up well during cooking. Unlike dried beans, lentils don’t require pre-soaking prior to being cooked; simply pick over the little legumes, remove any that look broken or damaged, and cook.
  • Thyme and bay leaves: These herbs infuse the soup with aromatic, earthy flavors.
  • Jump to the printable recipe for precise measurements

Step-by-Step Instructions

Fry the bacon in a large pot over medium heat, stirring frequently, until the fat is rendered and the bacon is crisp, 4 to 5 minutes.

bacon sizzling in pot.

Add the olive oil, onions, celery, carrots and garlic, and cook until the onions are soft and translucent, about 5 minutes.

vegetables and bacon cooking in pot.

Add the tomatoes, chicken broth, lentils, thyme, bay leaves, salt and pepper. Bring to a boil.

simmering broth with vegetables, tomatoes, and bacon in pot.

Reduce the heat and simmer, partially covered, until the lentils are tender but not mushy, 45 to 50 minutes (less for common lentils).

lentil soup in pot before blending.

Using an immersion blender, purée the soup a little bit at a time until the broth is slightly thickened. Go easy—if you purée the soup too much, it will get too thick and you’ll lose the integrity of the lentils. If you don’t have an immersion blender, transfer a few cups of the soup to a standard blender and purée, then return the blended soup to the pot.

blending lentil soup with immersion blender.

Season to taste and adjust the consistency if necessary (the soup tends to thicken as it sits, so you may need to add some water).

thickened lentil soup in pot.

Ladle the soup into bowls and garnish with fresh parsley.

bowl of lentil soup.

Frequently Asked Questions

What type of lentils are best for lentil soup?

While you can use any type of lentils to make lentil soup, I prefer French green lentils, or lentilles du Puy. Prized by chefs for their earthy, peppery flavor and sturdy texture, these small lentils hold their shape when cooked. You can find them in many supermarkets—I usually get them at Whole Foods or Wegman’s—or order them online. They work beautifully in soups as well as lentil salad. If you’d prefer to use common green or brown lentils, that’s fine. Just watch the cooking time carefully as they can get mushy if overcooked.

french green lentils in bowl

Can I make this lentil soup vegetarian?

Yes, this soup can easily be made vegetarian without sacrificing flavor. Simply increase the olive oil slightly to compensate for the absence of rendered bacon fat. Use vegetable broth instead of chicken broth to keep the soup base vegetarian-friendly. To mimic the smoky depth that bacon adds, add a pinch of smoked paprika or a dash of liquid smoke.

Can lentil soup be made ahead of time?

Absolutely! The soup can be prepared up to 3 days in advance. Keep it stored in the refrigerator and when you’re ready to enjoy it, reheat on the stovetop over medium heat. If the soup has thickened in the fridge, add a little water to adjust the consistency to your liking.

Can lentil soup be frozen?

Yes, lentil soup freezes well and can be stored in the freezer for up to 3 months. To thaw, place the soup in the refrigerator overnight. Then, reheat it on the stovetop over medium heat until warmed through. If necessary, add a bit of water to thin it out if it has become too thick during freezing.

Lentil Soup Video Tutorial

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Lentil Soup

Brimming with a wholesome mix of veggies, lentils, and just the right amount of bacon, this hearty lentil soup is the perfect antidote to a chilly day.

Servings: 6
Prep Time: 25 Minutes
Cook Time: 45 Minutes
Total Time: 1 Hour 10 Minutes

Ingredients

  • 3 slices bacon, finely chopped
  • 1 tablespoon olive oil
  • 1 large yellow onion, finely chopped
  • 1 stalk celery, finely chopped
  • 2 medium carrots, diced
  • 3 cloves garlic, chopped
  • 1 14.5-oz can diced tomatoes
  • 6 cups chicken broth, best quality such as Swanson
  • 1 cup French lentils (lentilles du Puy) or common brown or green lentils
  • ½ teaspoon dried thyme
  • 2 bay leaves
  • 1 teaspoon salt
  • ¼ teaspoon ground black pepper
  • A few tablespoons chopped fresh parsley, for garnish (optional)

Instructions

  1. Fry the bacon in a large pot over medium heat, stirring frequently, until the fat is rendered and the bacon is crisp, 4 to 5 minutes. Add the olive oil, onions, celery, carrots, and garlic and cook, stirring occasionally, until the onions are soft and translucent, about 5 minutes. Do not brown; reduce heat if necessary. Add the tomatoes (with their juices), broth, lentils, thyme, bay leaves, salt and pepper and bring to a boil. Cover partially, reduce the heat to low, and simmer until the lentils are tender, 45 to 50 minutes (see note on cooking time if using common brown or green lentils). Fish out the bay leaves and discard.
  2. Use an immersion blender to purée the soup until the broth is slightly thickened, or to desired consistency. (Be careful not to purée too much or the soup will get too thick, and you'll lose the integrity of the lentils.) If you don't have an immersion blender, transfer about 2 cups of the soup to a blender and purée until smooth, then return the blended soup to the pot. Garnish with fresh chopped parsley if desired and serve. (Note: The soup may thicken as it sits; thin with a bit of water if necessary.)
  3. Note: If using common brown or green lentils instead of French lentils, start checking for doneness around 30 minutes.
  4. Make-Ahead/Freezing Instructions: You can prepare this soup up to 3 days in advance, or freeze it for up to 3 months for longer storage. To defrost, let the soup thaw in the refrigerator overnight. When ready to serve, reheat the soup on the stovetop over medium heat until it's thoroughly hot. If you find the soup has thickened more than you'd like during its time in the fridge or freezer, simply stir in a little water or broth to reach your desired consistency.

Pair with

Nutrition Information

Powered by Edamam

  • Per serving (6 servings)
  • Serving size: about 1 3/4 cups each
  • Calories: 318
  • Fat: 12g
  • Saturated fat: 3g
  • Carbohydrates: 35g
  • Sugar: 8g
  • Fiber: 12g
  • Protein: 17g
  • Sodium: 878mg
  • Cholesterol: 17mg

This website is written and produced for informational purposes only. I am not a certified nutritionist and the nutritional data on this site has not been evaluated or approved by a nutritionist or the Food and Drug Administration. Nutritional information is offered as a courtesy and should not be construed as a guarantee. The data is calculated through an online nutritional calculator, Edamam.com. Although I do my best to provide accurate nutritional information, these figures should be considered estimates only. Varying factors such as product types or brands purchased, natural fluctuations in fresh produce, and the way ingredients are processed change the effective nutritional information in any given recipe. Furthermore, different online calculators provide different results depending on their own nutrition fact sources and algorithms. To obtain the most accurate nutritional information in a given recipe, you should calculate the nutritional information with the actual ingredients used in your recipe, using your preferred nutrition calculator.

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Comments

  • This was really terrific. The best lentil soup I have made. My husband could not stop eating it.

    • — Jill Schilling
    • Reply
  • I really loved the flavours in this recipe. I made it in my pressure cooker and it was quick and I could not get enough of it.

    • How many minutes in the pressure cooker?

  • Wow! That is seriously good lentil soup! This recipe is almost stupid easy to make. It usually takes me twice as long to make a recipe as the originating chef/cook says it will take. Not so with this one, it really is easy and and is quick to make. I would serve this soup to someone I was trying to impress!

    The bacon adds incredible flavor that works very well with the lentils. Speaking of lentils, if you don’t want mushy lentils be sure to keep an eye on how fast they are cooking, they will probably surprise you.

    Since I live alone and I made the entire recipe, I had plenty of left-overs to enjoy!

  • Hi Jenn

    I made this French lentil soup several times and it’s always delicious. I also made the Smokey chickpea red lentil soup which is delicious as well. I’m wondering if I could use some of the red lentils in the French lentil soup. Would this make a difference in the flavor? Thanks for your help.

    • Sure, Maria – just keep in mind that the soup will taste a bit different and the red lentils will be much softer than green.

  • This is simple and Delicious, I didn’t have thyme. and at the end of cooking after I used the immersion blender I added more parsley & a hand full of spinach. cooked an additional 5 mins..Will Make Again !

    • — Patricia Powell
    • Reply
  • Hi Jenn, do you rinse & soak the lentils prior to adding them to the soup? Thanks!

    Amy

    • Hi Amy, It’s a good idea to rinse them but no need to soak.

  • Made the soup today. Very good, and my husband loved it too. I cheated a little with the proportions, as I had a larger can of tomatoes and less chicken broth. It still came out great. However, I omitted the salt altogether, because of the bacon and the broth. I am glad I did. It definitely was salty enough. So I would caution everybody to read the labels on cans and to be cautious, unless they like really salty soup. Other than that, great recipe!

  • Delicious -next time I’ll make a double recipe.

    • — Patricia L. Kraska
    • Reply
  • I’m glad I doubled the recipe too! Delicious! Just received your cookbook in the mail yesterday and my next venture will be the pasta fagioli!

  • Jen!
    So terrific!! Made it without the bacon for my vegetarian daughter. We added the smoked paprika.
    It turned out very very good. First time using the green lentils and absolutely loved them – they keep their shape too!
    The thing I like most about this soup is that you don’t need to add Parmesan or a cracker – the lentils give it what it needs. Save on the extra calories!
    Excellent!! 😊

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