This instant pot lentil soup is the ultimate cozy meal made from scratch with hearty lentils and aromatic vegetables. It comes together in under an hour, requiring minimal hands-on effort while delivering maximum flavor. It is a perfect, wholesome dinner for busy weeknights or a comforting lunch on a chilly day.

I’ve been making this particular lentil soup for years, a recipe I adapted after a memorable trip through the Mediterranean. The way the spices bloom in the pressure cooker fills my kitchen with the most inviting aroma, a scent that promises a satisfying meal. It’s the dish I turn to when I need something both nourishing and effortless, often pairing a bowl with a slice of my stracciatella soup for a lighter spread or serving it before a heartier main like cottage pie.

What Makes This Lentil Soup Special

Incredibly Quick & Easy: The Instant Pot delivers deep, developed flavor in a fraction of the time of stovetop simmering.
Wholesome and Nutritious: Packed with protein-rich lentils and vegetables, this is a truly satisfying meal.
Perfect for Meal Prep: This soup tastes even better the next day, making it ideal for weekly lunches.
Budget-Friendly Comfort: Simple, affordable ingredients come together to create a deeply comforting bowl of soup.

What You’ll Need for Your Instant Pot Lentil Soup

Be sure to see the recipe card below for the full listing of ingredients, instructions, notes, and estimated nutritional information.

Olive Oil: Use a good quality oil for sautéing the vegetables to build a flavorful base.
Yellow Onion, Carrots, and Celery: This classic trio, or mirepoix, forms the aromatic foundation of the soup.
Garlic: Freshly minced garlic adds a essential pungent depth that powder cannot match.
Brown or Green Lentils: These hold their shape well during pressure cooking, giving the soup great texture.
Diced Tomatoes: Canned tomatoes with their juices add a touch of bright acidity.
Vegetable Broth: Use a low-sodium broth so you can control the final seasoning perfectly.
Dried Thyme and Bay Leaf: These herbs provide the classic, comforting savory notes.

Blueberry Lemon Pound Cake

A wonderfully moist and tender blueberry pound cake with a zesty lemon glaze, perfect for any occasion.

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Prep Time 20

Cook Time 1

Total Time 2 5

Course Dessert

Cuisine American

Servings 8 slices

Calories 320 kcal

Equipment

oven
9×5 inch loaf pan
mixing bowl
whisk
hand mixer or stand mixer
rubber spatula
wire rack
measuring cups
measuring spoons

Ingredients

Cake Batter

1 cup all-purpose flour
3/4 cup granulated sugar
1/2 cup unsalted butter softened at room temperature
1/2 cup whole milk
2 large eggs at room temperature
2 tsp baking powder
1 tsp vanilla extract
1/2 tsp salt
1 cup fresh blueberries rinsed and dried
1 tbsp all-purpose flour for tossing with blueberries

Lemon Glaze

1 cup powdered sugar
2 tbsp lemon juice freshly squeezed
1 tsp lemon zest finely grated

Instructions

Preheat your oven to 350°F (175°C). Grease a 9×5-inch loaf pan with butter or nonstick spray and line it with parchment paper, leaving an overhang on two sides for easy removal.
In a medium bowl, whisk together 1 1/4 cups of all-purpose flour, the baking powder, and salt until well combined. In a large mixing bowl, use a hand mixer or stand mixer to beat the softened butter and granulated sugar together on medium speed for 2-3 minutes, until the mixture is light and fluffy.
Add the eggs to the butter mixture one at a time, beating well after each addition until fully incorporated. Mix in the vanilla extract. With the mixer on low speed, alternately add the dry flour mixture and the milk to the butter mixture, beginning and ending with the dry ingredients. Mix just until the batter is smooth with no dry pockets of flour.
In a small bowl, gently toss the dried blueberries with 1 tablespoon of flour until lightly coated. Fold the floured blueberries into the cake batter using a rubber spatula until they are evenly distributed. Pour the batter into the prepared loaf pan and smooth the top with the spatula.
Bake for 50 to 60 minutes, or until a toothpick inserted into the center of the cake comes out clean. The top should be golden brown and spring back when lightly touched. Let the cake cool in the pan on a wire rack for 15 minutes, then use the parchment paper overhang to lift it out onto the rack to cool completely.
While the cake cools, make the glaze. In a small bowl, whisk together the powdered sugar, lemon juice, and lemon zest until you have a smooth, pourable glaze. Once the cake is completely cool, drizzle the glaze evenly over the top, allowing it to drip down the sides. Let the glaze set for about 30 minutes before slicing and serving.

Notes

Tossing the blueberries in flour helps prevent them from sinking to the bottom of the cake. Ensure ingredients are at room temperature for the best texture.

Keyword blueberry, lemon, pound cake, quick bread

Easy Ways to Customize This Soup

Add More Protein: Stir in shredded rotisserie chicken or cooked sausage during the last few minutes.
Make It Spicy: Add a pinch of red pepper flakes with the other dried spices.
Creamy Version: Stir in a splash of coconut milk or heavy cream just before serving.

My Timing Tips for Perfect Soup

Sauté the Aromatics: Take the full time to soften the onions, carrots, and celery. This builds a sweet, deep flavor base for your instant pot lentil soup.
Season in Layers: Add a pinch of salt when sautéing vegetables and again after adding the broth. This ensures every component is seasoned, much like when making a robust beef stew.
Natural Pressure Release: Allowing the pressure to release naturally for 10 minutes helps the lentils become perfectly tender without turning mushy.
Adjust Consistency at the End: If the soup is too thick after cooking, simply stir in a little extra broth or water until it reaches your preferred texture.

How to Store and Reheat Your Soup

Store: Cool the soup completely before transferring it to an airtight container. It will keep in the refrigerator for up to 4 days.
Freeze: This soup freezes beautifully for up to 3 months. Store in freezer-safe bags or containers, leaving some space for expansion.
Reheat: Warm gently on the stovetop over medium-low heat, stirring occasionally, or microwave in a covered bowl until hot.
Make-Ahead Tip: You can chop the vegetables a day in advance and store them covered in the fridge to speed up prep.

Frequently Asked Questions

Do I need to soak lentils for Instant Pot soup?

No, one of the great advantages of using lentils is that they do not require soaking. They cook relatively quickly in the pressure cooker directly from their dried state, becoming perfectly tender.

Can I use red lentils in Instant Pot lentil soup?

You can, but be aware that red lentils break down much more easily and will create a thicker, creamier soup rather than one with distinct lentil texture. Reduce the cook time by a few minutes if using red lentils.

Why is my Instant Pot lentil soup mushy?

Mushy soup is usually caused by overcooking. Be sure to use brown or green lentils, which hold their shape better, and use a natural pressure release for 10 minutes instead of a quick release to prevent the lentils from bursting.

How can I make my lentil soup more flavorful?

Don’t rush the step of sautéing the onions, carrots, and celery. Let them become soft and slightly caramelized. Also, toasting the spices for a minute before adding the liquid, as you would for a dish like Cajun sausage and rice skillet, will deepen their flavor significantly.

More Cozy Instant Pot Recipes

Why This Lentil Soup Is a Weeknight Win

With its rich, comforting flavor and effortless preparation, this instant pot lentil soup is a guaranteed winner. It proves that a wholesome, from scratch meal can be achievable even on the busiest of evenings. I hope it becomes a cherished, go-to recipe in your home as well.

Easy Berry Pound Cake