There’s something magical about the way a pot of Sweet Potato Lentil Soup fills the kitchen with its earthy, comforting aroma as the weather turns crisp. It’s the kind of meal that wraps you in warmth from the first spoonful – nourishing, slightly sweet from the potatoes, and packed with cozy spices that make you want to curl up by the fire. I’ll never forget the first time I made this for my kids after a long school day. They dragged in, tired and hungry, but the moment that rich orange soup hit their bowls, their faces lit up. We sat around the table, steam rising between us, and for that little while, everything felt right in the world. Now it’s our go-to when we need a hug in a bowl. Whether you’re looking for a simple weeknight dinner or a starter for your Thanksgiving spread, this soup brings people together in the best way.

Why You’ll Love This Sweet Potato Lentil Soup
Oh, where do I even start with this gorgeous bowl of comfort? This soup has become my kitchen superhero for so many reasons:
- It’s like a warm hug in a bowl – that perfect balance of sweet potatoes and earthy lentils just melts away the day’s stress
- Packed with goodness – between the fiber from lentils and vitamin A from sweet potatoes, you’re getting a nutritional powerhouse
- Weeknight lifesaver – ready in about 30 minutes with simple ingredients you probably have already
- Autumn in every spoonful – the smoked paprika and cumin give it that cozy fall flavor we all crave
- Kids actually eat it – mine gobble up the sweet, creamy texture (and I don’t tell them how healthy it is!)
Trust me, once you try this soup, you’ll understand why it’s become my cold-weather staple. It’s the kind of recipe you’ll find yourself making again and again.
Ingredients for Sweet Potato Lentil Soup
One of the best things about this soup? You likely have most of these ingredients in your pantry already! I love recipes that don’t require fancy shopping trips. Here’s what you’ll need to make my favorite cozy bowl of goodness:
- 1 tbsp olive oil – just enough to get those onions beautifully soft
- 1 medium onion, peeled and diced – don’t rush this step, those golden bits add so much flavor
- 400g sweet potato, peeled and chopped into chunks – about 1 large potato
- 1 tsp fresh ginger, finely chopped – this little zing makes all the difference
- 1 large clove garlic, finely chopped – because what’s soup without garlic?
- ¼ tsp dried chilli flakes – just enough warmth without being spicy
- ½ tsp cumin seeds – they’ll toast beautifully with the onions
- ½ tsp smoked paprika – my secret weapon for that deep, cozy flavor
- 4 tbsp red lentils, rinsed – these cook so quickly and make the soup creamy
- 700ml vegetable stock – homemade if you have it, but store-bought works great too
- Salt and pepper to taste – I prefer kosher salt for better control
See? Nothing complicated here. Just honest ingredients that come together to make something truly special. The sweet potatoes and lentils do most of the heavy lifting, while the spices add that magical warmth we all crave when the leaves start falling.

How to Make Sweet Potato Lentil Soup
Okay, let’s get cooking! This soup comes together so easily, but I’ll walk you through each step to make sure it turns out perfect. The first time I made it, I was amazed at how simple it was for something that tastes so rich and comforting.
Step 1: Heat that olive oil in your favorite soup pot over medium heat. Add the diced onion and let it soften for about 5 minutes – you want them translucent, not browned. This is where the flavor foundation builds, so don’t rush it! I often stir in a pinch of salt here to help draw out the onions’ natural sweetness.
Step 2: Time for the aromatics! Add the ginger, garlic, chili flakes, cumin, and smoked paprika. The smell at this point is absolutely heavenly – like autumn in a pot. Stir constantly for about a minute until everything’s fragrant. Careful not to let the garlic burn – it turns bitter fast.
Step 3: Now toss in those beautiful orange sweet potato chunks and rinsed lentils. Pour in the vegetable stock – I like to swirl a little around the pot to get all those tasty spice bits off the bottom. Bring everything to a gentle boil, then reduce to a simmer. Cover with a lid slightly ajar and let it bubble away for 25 minutes. You’ll know it’s ready when the sweet potatoes are fork-tender and the lentils have broken down.
Step 4: Here’s where the magic happens! Turn off the heat and let it cool slightly before blending. I use my immersion blender right in the pot for easy cleanup, but a regular blender works great too – just work in batches and be careful with the hot liquid. Blend until silky smooth or leave it a bit chunky if you prefer texture. Taste and season with salt and pepper – I usually add another pinch of smoked paprika here too.
That’s it! Four simple steps to the coziest bowl of soup you’ll make all season. Sometimes I’ll stir in a splash of coconut milk at the end for extra creaminess, but it’s divine just as is. Serve it up with some crusty bread and watch how quickly it disappears!

Tips for the Perfect Sweet Potato Lentil Soup
After making this soup dozens of times, here are my best tricks for getting it just right:
- Spice control: Start with less chili if you’re sensitive to heat – you can always add more at the end. The sweet potatoes naturally balance the spices beautifully.
- Blending secrets: For ultra-smooth soup, strain it after blending. Or leave some texture by pulsing instead of pureeing continuously.
- Leftover love: This soup thickens in the fridge – just thin it with a little water or stock when reheating. It freezes wonderfully for up to 3 months too!
- Flavor boost: Try adding a squeeze of lemon juice or apple cider vinegar at the end to brighten all the flavors. A dollop of yogurt or creamy tahini makes a lovely garnish.
Remember, soup is forgiving – taste as you go and make it your own. That’s the joy of home cooking!
Nutritional Information for Sweet Potato Lentil Soup
One of my favorite things about this soup (besides how delicious it is) is how nourishing each bowl feels. Here’s what you’re getting in every serving:
- 183 calories – light yet satisfying
- 5g protein – thanks to those mighty lentils
- 7g fiber – great for digestion (learn more about fiber benefits)
- 33g carbs – mostly from the sweet potatoes’ natural sugars
- 4g fat – just enough from the olive oil to help absorb all those vitamins
- 14,720 IU vitamin A – a whole day’s worth from the sweet potatoes!
Keep in mind these numbers are estimates – your exact nutrition will vary based on your specific ingredients and how you prepare the soup. But one thing’s for sure – this is comfort food you can feel good about serving!
Serving Suggestions for Sweet Potato Lentil Soup
Oh, how I love dressing up this gorgeous orange soup for different occasions! For weeknights, I keep it simple with thick slices of warm, crusty bread for dipping – that satisfying crunch against the creamy soup is pure comfort. When I’m feeling fancy, I’ll top bowls with a swirl of yogurt and a sprinkle of toasted pumpkin seeds. This soup shines at holiday gatherings too – it makes the perfect starter for your Thanksgiving feast alongside lighter dishes. For a complete fall meal, pair it with a crisp apple salad or roasted Brussels sprouts. Honestly though? Sometimes I just grab a spoon and enjoy it straight from the pot – no judgment here!

Storage and Reheating Tips
This soup is one of those magical recipes that actually gets better as leftovers – the flavors deepen overnight! Here’s how I store and reheat it to keep that perfect texture and taste:
For the fridge, let the soup cool completely before transferring to airtight containers. It’ll stay fresh for up to 4 days – just give it a good stir when you take it out, as it tends to thicken. When reheating, I add a splash of water or broth to loosen it up, then warm gently on the stove over medium-low heat, stirring occasionally. If you’re in a hurry, the microwave works too – just cover the bowl and heat in 30-second bursts, stirring between each.
Freezing? Absolutely! Portion it into freezer-safe containers (leave about an inch of space at the top for expansion) and it’ll keep beautifully for up to 3 months. Thaw overnight in the fridge before reheating. Pro tip: freeze some in ice cube trays for quick single servings to defrost whenever a cozy soup craving hits!
Frequently Asked Questions
I get so many questions about this Sweet Potato Lentil Soup – it’s clearly become a favorite for many of you! Here are the answers to the ones I hear most often:
Can I freeze this soup?
Absolutely! This soup freezes like a dream. Just let it cool completely, then portion it into freezer-safe containers (leave some room for expansion). It’ll keep beautifully for up to 3 months. When you’re ready to enjoy, thaw overnight in the fridge and reheat gently on the stove with a splash of water or broth to bring back that perfect creamy texture.
Can I use different types of lentils?
You sure can, though the cooking time may vary. Red lentils work best here because they break down so nicely into that velvety texture. If you use brown or green lentils, they’ll hold their shape more – still delicious, just different! Just cook them a bit longer until tender. Avoid whole grain lentils if you want that smooth consistency.
How can I make this soup spicier?
Oh, I love this question! For more heat, try doubling the chili flakes or adding a pinch of cayenne with the other spices. Sometimes I’ll stir in a spoonful of harissa paste at the end for a smoky kick. If you really want to turn up the warmth, top each bowl with a drizzle of chili oil – it looks pretty and packs a punch!
Is this soup good for meal prep?
It’s perfect for meal prep! The flavors actually improve after a day or two in the fridge. I often make a double batch on Sunday for easy lunches all week. Just store it in individual portions and reheat as needed. The lentils and sweet potatoes keep you full for hours – it’s my favorite work-from-home lunch when I need something wholesome and comforting.
Can I make this in a slow cooker?
Yes! Just sauté the onions and spices first (this step really builds flavor), then dump everything into your slow cooker. Cook on low for 6-7 hours or high for 3-4 hours until the lentils and sweet potatoes are tender. Blend right in the pot with an immersion blender – so easy! It makes the house smell amazing all day too.
More Fall Recipes to Try
If you loved this Sweet Potato Lentil Soup, wait until you try these other cozy fall favorites! I’m obsessed with my Thanksgiving recipe collection – packed with comforting dishes that’ll make your whole house smell like autumn. From creamy mashed potatoes to spiced apple desserts, there’s something for every craving. Trust me, once you start cooking these recipes, you’ll want to make them all season long!
Sweet Potato Lentil Soup
Equipment
- large pot
- Blender or food processor
Ingredients
- 1 tbsp olive oil
- 1 medium onion peeled and diced
- 400 g sweet potato peeled and chopped into chunks
- 1 tsp fresh ginger finely chopped
- 1 large clove garlic finely chopped
- 1/4 tsp dried chilli flakes
- 1/2 tsp cumin seeds
- 1/2 tsp smoked paprika
- 4 tbsp red lentils rinsed
- 700 ml vegetable stock
- salt and pepper to taste
Instructions
- Heat the olive oil in a large pot and gently fry the onion for a few minutes until soft.
- Add the ginger, garlic, chilli flakes, cumin, and smoked paprika. Fry for a further minute until aromatic.
- Add the sweet potato, lentils, and stock.
- If using a blender, put all ingredients into the cooking jug, select the smooth soup function, and blend.
- If cooking on the hob, bring to a boil, reduce to a simmer, and cook for 25 minutes until the potatoes are soft and the lentils are cooked.
- Blend the soup until smooth using a high-speed blender, food processor, or stick blender.
- Taste and adjust seasoning as needed.

