Easy Red Lentil Soup Recipe - Ready in 30 Minutes!

Red lentil soup

Red lentil soup

Prep: 10 mins | Cook: 21 mins | Total: 31 mins | Serves: 3
There’s nothing like a bowl of **red lentil soup** to turn a tired evening into something warm and satisfying. You’ve just walked in from a long day, the fridge is nearly empty, and all you want is dinner that practically makes itself. This version comes together in under half an hour with humble ingredients you likely already have on hand—just a splash of olive oil, some finely chopped onions and red pepper, and a couple of humble stock cubes (ham for meat lovers, vegetable for an easy swap). What makes this soup special isn’t fancy technique or rare spices, but how effortlessly it transforms into something rich and velvety. The red lentils melt into the broth while the tomato purée adds just enough depth to keep every spoonful interesting. A pinch of chilli flakes gives it a whisper of heat, and a quick seasoning of salt and pepper ties it all together. By the time it’s done, you’ll have a pot of soup that tastes like it simmered all afternoon, even though it barely took 30 minutes.

Red lentil soup

Ingredients

  • One tablespoon of olive oil
  • Two medium onions, finely chopped
  • One red bell pepper, finely diced
  • Two tablespoons of tomato paste
  • Two hundred grams of red lentils
  • Two ham stock cubes (or vegetable stock cubes for a vegetarian alternative)
  • Crushed red pepper flakes to taste
  • Salt and freshly ground black pepper to taste
  • Sourdough bread with a crisp crust for serving (optional)

Instructions

Step 1

Here’s the expanded and rewritten Step 1 for your red lentil soup recipe: --- **Step 1: Rinse the lentils** Hold your sieve under cold running water and swirl the lentils around with your fingers to wash away any dust or stray bits. You’re aiming to wash off just enough starch to keep the soup from getting too creamy—about 30 seconds should do it. Give them one final rinse, then let them drain while you prep the rest of your ingredients. That golden hue of the lentils will brighten up once they’re cleaned!

Step 2

Here’s the expanded and refined version of Step 2 for the red lentil soup recipe: --- Pour a drizzle of olive oil into a medium pot over medium heat. Add the chopped onions, stirring gently to coat them in the oil. Reduce the heat to low and let them cook slowly, stirring every couple of minutes, until they soften and turn a light golden color—about 5 to 8 minutes. You’re looking for them to be tender and just starting to look translucent, with no raw bite left.

Step 3

Stir in the tomato purée until every bit of onion glistens with a deep, glossy sheen. Let it sizzle against the onions for about 2 minutes, until the raw smell mellows into something richer and more aromatic.

Step 4

Sprinkle diced red bell pepper over the onions and give everything a quick stir so the pieces nestle into the softening onions. Let them hang out together for another minute or two, just until the pepper starts to soften and the kitchen smells like a lightly sweet, savory base. If you’re using a pinch of smoked paprika to deepen the flavor, toss it in now and stir it through so it coats every piece evenly.

Step 5

In a large pot, bring one litre of water to a rolling boil. As soon as it’s bubbling away, crumble both stock cubes into the pot—no need to stir yet, just let them dissolve on their own.

Step 6

Here’s your expanded Step 6 with all the details, warmth, and clarity you asked for: --- Add the red lentils and your warm ham stock to the pot, stirring gently with a wooden spoon to combine everything. You want to coat each lentil in the fragrant broth before the soup starts to bubble away. Once everything is mixed, bring the soup to a gentle simmer over medium-low heat. Then, let it cook uncovered for about 10–15 minutes, stirring occasionally. Keep an eye on it—you’re looking for the lentils to soften but still hold their shape, and the soup to thicken just enough to coat the back of a spoon. If the mixture looks too thick, splash in a little water to loosen it up. You’ll know it’s ready when the lentils are tender and the flavors have melded together beautifully.

Step 7

Now’s the fun part—turning your soup into something velvety without losing all those good bits of veg. Grab your stick blender and give it three or four quick pulses, just enough to break up the biggest onion and pepper chunks. You’re not going for baby food here; a little texture is totally fine. Watch the color deepen as the broth gets cloudy—that’s your cue it’s coming together nicely.

Step 8

Give the soup a taste and adjust the seasoning to your liking. Sprinkle in a pinch of chilli flakes if you want a gentle warmth, then add a few grinds of black pepper and salt. Stir everything together and let the soup sit for a minute so the flavors can mingle. You're aiming for a balanced broth—bright from the lemon, savory from the spices, and just the right amount of salt.

Step 9

Slip a spoon into a bowl of the soup—it should be thick enough to coat the back nicely and smell like toasted cumin and garlic. Ladle it into shallow bowls while it’s still steaming hot, then set a small plate of crusty bread and a little dish of softened butter on the side so everyone can dunk and spread. If you’re making two meals of it, let the leftovers cool for 10 minutes, then pop them into an airtight container; the soup keeps for up to three days in the fridge or three months in the freezer if you want to tuck it away for later. When you’re ready to eat again, warm it gently in a saucepan over low heat, stirring once or twice, until it’s bubbling and smells like fresh-baked bread all over again.

Nutrition Information

calories: 420 kcal
fat: 12g
carbs: 58g
protein: 20g
fiber: 12g

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My Tip

When you stir in the tomato purée, let it cook just long enough to darken slightly—that’s when the sweetness deepens and the soup’s flavor really starts to bloom.

Leftovers

Pop the soup into an airtight container while it’s still warm and it’ll stay fresh in the fridge for up to three days. When you’re ready, warm it gently in a saucepan over low heat, stirring now and then—just enough to bring back its silky texture without drying it out.

Make It Your Own

Swap the ham stock cubes for smoked paprika and a pinch of cumin, then stir in a handful of chopped kale with the lentils. You’ll get a smoky depth without meat, and the kale wilts right in for extra colour and bite.

#Red lentil #red lentil soup