Old Fashioned Lentil Soup Recipe

Made with simple pantry ingredients, fresh vegetables, and aromatic herbs, this Old Fashioned Lentil Soup Recipe is the kind of meal that has been enjoyed for generations. It is hearty, nourishing, and packed with comforting flavors that make it perfect for lunch, dinner, or meal prep throughout the week.

One of the best things about lentil soup is its simplicity. Lentils are affordable, filling, and rich in plant-based protein, making them an excellent ingredient for creating a satisfying meal. Combined with carrots, celery, onions, and a flavorful broth, this soup delivers wholesome goodness in every spoonful while being easy enough for cooks of any skill level.

1. Old Fashioned Lentil Soup Recipe (Yield: 6 Servings)

Ingredients

• 2 tablespoons olive oil
• 1 medium onion, diced
• 2 medium celery stalks, diced
• 2 medium carrots, diced
• 4 garlic cloves, minced
• 6 cups low-sodium vegetable broth
• 2 cups dried brown lentils, rinsed and drained
• 1 teaspoon dried rosemary (or 1 tablespoon fresh)
• 2 teaspoons dried thyme leaves (or 2 tablespoons fresh)
• ½ teaspoon black pepper
• 1 bay leaf
• 1 (14-ounce or 400 ml) can diced tomatoes
• 2 teaspoons red wine vinegar
• Salt to taste

Instructions

Begin by sorting through the lentils and removing any small stones or debris. Place the lentils in a fine-mesh strainer and rinse them thoroughly under cold running water. Drain well and set aside.

Heat the olive oil in a large soup pot or Dutch oven over medium heat. Once the oil is warm, add the diced onion, celery, and carrots. Cook the vegetables for about 6 to 8 minutes, stirring occasionally, until they begin to soften and the onion becomes translucent.

Add the minced garlic to the pot and cook for about 30 seconds, stirring constantly until fragrant. Avoid overcooking the garlic, as it can become bitter.

Pour in the vegetable broth and stir well. Add the rinsed lentils, rosemary, thyme, black pepper, and bay leaf. Stir everything together until well combined.

Add the can of diced tomatoes, including the juices, and stir again. Increase the heat slightly and bring the soup to a gentle boil.

Once the soup reaches a boil, reduce the heat to low and partially cover the pot with a lid. Allow the soup to simmer for about 35 to 45 minutes, stirring occasionally. During this time, the lentils will become tender and absorb the flavors of the broth and herbs.

Check the lentils for doneness after about 35 minutes. They should be soft but still hold their shape. If needed, continue simmering until they reach your preferred texture.

Remove the bay leaf and discard it. Stir in the red wine vinegar and taste the soup. Add salt as needed and adjust the seasoning according to your preference.

For a slightly thicker soup, use the back of a spoon to gently mash some of the lentils against the side of the pot. You can also blend a small portion of the soup and stir it back in for a creamier consistency while still maintaining plenty of texture.

Allow the soup to simmer for another 2 to 3 minutes before removing it from the heat. Ladle into bowls and serve warm with crusty bread, crackers, or a fresh green salad.

2. Tips for Perfect Old Fashioned Lentil Soup

Rinse the lentils thoroughly before cooking to remove dust and ensure the best flavor and texture.

Brown lentils work especially well in this recipe because they hold their shape during cooking while becoming tender.

Fresh herbs can provide a brighter flavor if available, though dried herbs work beautifully and are convenient pantry staples.

A heavy-bottomed Dutch oven helps distribute heat evenly and prevents the soup from sticking during long simmering periods.

If the soup becomes too thick as it cooks, simply add a little extra broth or water until you reach the desired consistency.

Allow the soup to rest for a few minutes before serving. This gives the flavors additional time to blend together.

A squeeze of fresh lemon juice can be added just before serving for a bright, fresh finish.

This soup often tastes even better the next day as the ingredients continue to develop flavor while resting in the refrigerator.

3. Frequently Asked Questions

Do I need to soak lentils before making this soup?

No. Brown lentils do not require soaking before cooking. Simply rinse and drain them before adding them to the soup. This makes lentil soup a convenient meal that can be prepared without much advance planning.

Can I use green lentils instead of brown lentils?

Yes. Green lentils are an excellent substitute and maintain their shape well during cooking. The texture may be slightly firmer, but the soup will still be delicious.

Can I freeze lentil soup?

Yes. Lentil soup freezes very well. Allow it to cool completely before transferring it to freezer-safe containers. Freeze for up to 3 months and thaw overnight in the refrigerator before reheating.

How long does lentil soup last in the refrigerator?

Stored in an airtight container, lentil soup will stay fresh for up to 5 days in the refrigerator. In fact, many people find that the flavor improves after a day or two.

Can I make lentil soup in a slow cooker?

Yes. Add all ingredients except the vinegar to the slow cooker and cook on low for 7 to 8 hours or on high for 4 to 5 hours. Stir in the vinegar just before serving for the best flavor.

4. Nutrition Information

The following nutrition information is approximate and may vary depending on the ingredients used.

This Old Fashioned Lentil Soup Recipe proves that simple ingredients can create an incredibly satisfying meal. The combination of tender lentils, vegetables, herbs, and savory broth creates a hearty soup that is both comforting and nourishing.

It is easy to prepare, budget-friendly, and perfect for feeding a family or stocking your refrigerator with delicious leftovers. Once you try this classic recipe, it may become one of your favorite homemade soups for years to come.

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