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Slow Cooker Mulligatawny Soup

Slow Cooker Mulligatawny Soup

Slow Cooker Mulligatawny Soup is a creamy, aromatic bowl that blends warm spices, tender chicken, and silky red lentils into an easy weeknight dinner. The coconut milk and brown jasmine rice add comforting texture while a hint of green apple brightens the profile. Make it for cozy gatherings or meal prep, it delivers bold flavor with minimal hands on time.
Prep Time 15 minutes
Cook Time 2 hours 30 minutes
Total Time 2 hours 45 minutes
Servings: 8 people
Course: Soups
Cuisine: Indian
Calories: 350

Ingredients
  

  • 2 boneless and skinless chicken breasts cut into bite-sized pieces Cooked and diced to provide lean protein and texture; absorbs curry flavors and adds substance to the soup, making it more filling. Brown gently if desired before slow cooking to develop savory depth and keep pieces intact during simmering.
  • 1/2 sweet onion diced Diced finely to contribute mild sweetness and aromatic base; softens in the slow cooker and melds with spices to build savory complexity. Sautéing briefly before adding can enhance caramelization and overall flavor balance.
  • 3 garlic cloves minced Minced to release pungent, savory aroma and depth; infuses the broth with a warm, garlicky backbone that complements the spices. Adding early in cooking mellows its sharpness and distributes flavor throughout the soup.
  • 2 celery stalks sliced Sliced to add subtle vegetal crunch and savory notes; contributes moisture and aromatic layers that support the soup’s base. Gently sweated with onion and garlic helps integrate its mild bitterness into the overall profile.
  • 2 carrots sliced Sliced to provide natural sweetness and body; softens during slow cooking and helps thicken the broth while balancing the spices. Carrots also add color and complementary earthy flavor to the dish.
  • 1 cup red lentils Added dry to supply hearty texture and protein-rich body; breaks down partially while cooking to thicken and enrich the soup. Rinse before use if needed and monitor cooking time to achieve tender but not mushy lentils.
  • 1 green apple peeled, cored and diced Peeled, cored, and diced to introduce a bright, tart-sweet contrast; adds refreshing fruitiness that balances heat and savory spices. Apples also contribute subtle acidity and help create a layered, complex flavor.
  • 1 1/2 tablespoons garam masala Measured precisely to provide warm, aromatic curry character; blends cinnamon, cloves, and other spices to define the mulligatawny profile. Toasting briefly before use can intensify the spice oils and enhance aroma.
  • 1 teaspoon ground coriander Ground to contribute citrusy, slightly sweet, and floral undertones; supports the curry spices and adds depth to the soup’s flavor. Use sparingly to avoid overpowering more delicate elements like coconut milk and apple.
  • 1 teaspoon turmeric Added to impart earthy, slightly bitter warmth and golden color; complements other spices and supports the soup’s curry character. Turmeric also lends visual appeal and subtle anti-inflammatory notes.
  • 1/2 teaspoon cayenne pepper Measured to introduce heat and a sharp spicy kick; balances the sweeter and creamier components of the soup for lively flavor. Adjust quantity to taste, as cayenne can quickly increase overall spiciness.
  • 1 bay leaf Included whole to add subtle herbal, bay-like aromatics; releases a gentle savory note during long simmering without dominating the dish. Remove before serving to avoid bitter over-extraction of tannins.
  • 5 cups chicken broth Poured as the primary savory liquid to form the soup base; provides depth, salt, and umami that carry the spices and ingredients. Use a good-quality, low-sodium broth to better control seasoning.
  • 1 cup lite coconut milk Added to contribute creamy, tropical richness and a silky mouthfeel; balances heat and acidity while lending subtle coconut flavor. Stir in gently near the end of cooking to preserve its delicate texture.
  • 1 cup brown jasmine rice cooked Cooked and stirred in to introduce tender, fragrant grains and additional body; absorbs flavors and makes the soup more satisfying. Use pre-cooked rice to avoid overcooking and maintain pleasant texture.

Equipment

  • Slow Cooker

Method
 

  1. Place everything in the slow cooker except the rice. Cook on low for 5 to 6 hours, or low for 2 to 3 hours.: The aroma evolves gradually as the pot warms, releasing the sweet perfume of garam masala and the faint, earthy scent of turmeric . You will notice a fragrant steam rise when you lift the lid after an hour, with the softened onions and garlic blending into the broth. The reason we add all items except the rice is because the rice would overcook and become mushy during long simmering, so it is saved for the end. One common mistake is crowding the cooker with oversized chicken pieces, which can cause uneven cooking, so make sure pieces are similar in size. As the soup simmers, the lentils will begin to swell, siphoning starch into the liquid and thickening it; this natural thickening is a big part of the soup's texture. If the pot seems too full, transfer to a larger slow cooker or omit a cup of broth to prevent spillage. Keep an eye on seasoning now, but wait until the end for final salt adjustments, because flavors concentrate as the liquid reduces.
  2. Remove bay leaf, add jasmine rice and serve!: The long, gentle simmer mellows the spices and allows the chicken to tenderize while the red lentils break down, creating a silky mouthfeel. You will hear the occasional soft burble as the cooker maintains temperature, and when you lift the lid after a few hours the steam will smell richly spiced and slightly sweet from the green apple . This slow timeline helps collagen in the chicken relax, making meat tender without drying out. A common error is switching to high heat prematurely; sudden high heat can make lentils fall apart too fast or leave chicken fibers tough in places. If your slow cooker runs hot, check at the earlier end of the window; every machine behaves a little differently. Also avoid opening the lid repeatedly, as that drops heat and extends cooking time. The visual cue you're aiming for is soft vegetables, fully broken down lentils, and chicken that flakes easily with a fork.
  3. Remove bay leaf, add jasmine rice and serve: When you take out the bay leaf, you will notice the bouquet of the soup clarified slightly, the herbal note no longer bulky but integrated. As you stir in the cooked brown jasmine rice , steam will rise and the broth will look a touch thicker as the grains absorb liquid, providing body and chew. Adding the rice last preserves its texture so it does not disintegrate into the soup, and it helps portion control as each bowl gets a pleasant rice-to-broth ratio. A typical slip is adding uncooked rice, which will expand unpredictably and can turn the soup gluey; always use fully cooked rice as called for. Taste for seasoning now, because the rice will slightly mute the spices and you may need to lift the salt or a squeeze of lemon if you want more brightness. Serve immediately so the rice remains distinct, and watch for a final aroma of warming spices with a whisper of coconut in the finish.

Notes

  • Measure spices fresh: Freshly measured spices give brighter aromatics, and stale spices can make the final soup taste flat rather than vibrant.
  • Use low sodium broth: This gives you control over final salt levels, preventing an overly salty result after slow reduction concentrates flavors.
  • Peel the apple for texture harmony: Removing the peel ensures the pieces soften and meld into the broth instead of remaining slightly firm and texturally discordant.
  • Cook rice separately: Cooking rice ahead guarantees consistent texture and prevents the rice from absorbing too much liquid during the long simmer.
  • Check cooker heat variance: If your slow cooker runs hot, shorten the cooking window to avoid overcooking the lentils and reduce evaporation that concentrates saltiness.
  • Garnish at service: Add a small spoonful of extra coconut milk or a sprinkle of fresh herbs at the table to refresh the top notes and brighten each bowl.