Spare Spoons Kitchen
Weeknight · One pot · About 45 minutes

Red Lentil Soup

The weeknight lentil soup worth keeping — onions and tomato paste bloomed with cumin, red lentils simmered soft, half blended for creaminess, and lemon to lift it all. Vegan, one pot, freezer-friendly.

~45 min total 10 min prep 30 min simmer
Effort ●○○○ Time ●●○○ Anytime
VeganGluten-Free
Servingsamounts scale to match
4
Units

Ingredients

Bloom the tomato paste and spices, then purée just half. Frying the tomato paste, cumin, and chili with the onion deepens the whole pot. After the lentils are soft, blend only half so the soup is creamy but still has some texture. Finish with lemon — it wakes the whole thing up.

Easier, if you like

  • Pre-diced onion and a bag of matchstick carrots cut the prep to a few minutes.
  • It's a true one-pot — and it freezes well, so make a double batch.

Method

    Cook's notes

    Red lentils need no soaking and cook in about 30 minutes, breaking down into a natural creaminess.

    Blend only half for the best texture — creamy but still a little chunky. Skip blending for a brothier soup.

    Lemon at the end is essential — it lifts the earthy lentils. A drizzle of olive oil and a dusting of chili on top is the classic finish.

    Vegetable broth keeps it vegan; chicken broth adds body if that's what you have.

    Already vegan and gluten-free

    Vegan: use vegetable broth (the default here). Heartier: stir in a handful of spinach at the end, or top with yogurt (non-vegan).