Equipment
Ingredients
Chicken and Marinade Base
- 800 g bone-in skinless chicken thighs, trimmed of excess fat
- 150 g red onion, roughly chopped
- 30 g fresh ginger, peeled and roughly chopped
- 15 g garlic, peeled
- 10 g kosher salt
Soup Body
- 400 g roma tomatoes, halved
- 150 g red onion, halved
- 1 scotch bonnet pepper, whole, unpunctured for mild heat
- 30 g tomato paste
- 250 g unsweetened natural peanut butter, creamy style, well stirred
- 1000 ml chicken broth, divided use
- 10 g chicken bouillon cube, crushed
Nutrition (per serving)
Nutrition is estimated per serving. Nutrients without complete source data are omitted.
Full nutrition
- Calories
- 649 kcal
- Protein
- 60 g
- Carbohydrates
- 39 g
- Fat
- 30 g
- Fiber
- 7 g
- Sugar
- 15 g
- Sodium
- 2449 mg
- Saturated Fat
- 6 g
- Trans Fat
- 0 g
- Monounsaturated Fat
- 13 g
- Polyunsaturated Fat
- 8 g
- Cholesterol
- 193 mg
- Potassium
- 1429 mg
- Calcium
- 85 mg
- Iron
- 3.8 mg
- Magnesium
- 182 mg
- Phosphorus
- 673 mg
- Zinc
- 5.5 mg
- Vitamin A
- 22 mcg
- Vitamin C
- 32 mg
- Vitamin E
- 6.2 mg
- Vitamin K
- 7 mcg
- Vitamin B6
- 1.3 mg
- Vitamin B12
- 1.3 mcg
- Thiamin
- 0.45 mg
- Riboflavin
- 0.63 mg
- Niacin
- 21.0 mg
- Folate
- 62 mcg
- Water
- 484 g
Sources: Aggregated Public Data, USDA FoodData Central
Method
In a blender, combine the chopped red onion, ginger, garlic, and salt with a splash of water. Blend until it forms a smooth, coarse paste.
Place raw chicken thighs in the Dutch oven and thoroughly coat with the blended onion-ginger puree. Wash hands immediately after handling raw poultry to prevent cross-contamination. Place the pot over medium heat, cover, and let the chicken steam in its own juices at roughly 100°C/212°F for 10 minutes to deeply infuse the flavors.
Add the halved tomatoes, halved onion, whole scotch bonnet pepper, and 500ml of the chicken broth to the pot with the chicken. Simmer uncovered until the vegetables soften.
Using tongs or a slotted spoon, carefully remove the softened tomatoes, onion, and scotch bonnet pepper (if desired for heat) and transfer them to the blender. Add the tomato paste and puree until completely smooth. Pour this red mixture back into the simmering pot.
In a mixing bowl, combine the natural peanut butter with 250ml of hot broth from the pot. Whisk vigorously until a smooth, flowing paste forms without any lumps, then slowly pour and stir this emulsion into the main soup pot along with the crushed bouillon.
Pour in the remaining 250ml of broth. Reduce the heat to low and let the soup simmer uncovered, stirring occasionally, until the soup thickens, the chicken reaches a safe internal temperature of 74°C/165°F, and a deep reddish peanut oil rises to the surface.
Chef's Notes
- The presence of a red oil layer floating on the surface is not a flaw; in West African culinary traditions, this is the visual marker that the raw peanut flavor has cooked out and the soup is perfectly finished.
- Commercially sweetened peanut butter or spreads stabilized with hydrogenated oils will fundamentally ruin the texture and flavor profile of this traditional dish. Seek out 100 percent natural groundnut paste or peanut butter.
- Steaming the chicken in the pungent ginger-garlic-onion puree before introducing bulk liquids is an essential West African technique. It forces the meat to absorb aromatics deeply while rendering out its own savory juices.
- For an impeccably smooth, restaurant-quality texture, pass the blended tomato and onion mixture through a fine-mesh sieve before returning it to the pot to remove all seeds and skins.
Storage
Refrigerator: 4 days — Store in an airtight container. The flavor deepens over time.
Freezer: 3 months — Freeze without bones for easier reheating if desired.
Reheating: Reheat gently on the stovetop over medium-low heat, stirring frequently to prevent scorching the peanut base.
Troubleshooting
Peanut butter clumps into hard nodules when added to the soup
Cause: Thick, cold peanut butter was dropped directly into a large volume of simmering acidic liquid
Fix: Remove the chicken pieces temporarily and use an immersion blender to smooth out the soup base, then return the chicken
Prevention: Always temper the peanut butter by whisking it with hot broth in a separate bowl until smooth before incorporating
Soup is overwhelmingly spicy
Cause: The scotch bonnet pepper burst open entirely during the boil or puree phase
Fix: Stir in an additional tablespoon of peanut butter and 100ml of broth to dilute the capsaicin concentration
Prevention: Keep the pepper whole and unpunctured for a mild foundational warmth, and remove it before blending the tomatoes
Soup lacks depth and tastes watery
Cause: Insufficient reduction time or the use of watery commercial peanut butter spreads
Fix: Continue simmering uncovered for another 15-20 minutes to evaporate excess water and concentrate flavors
Prevention: Allow the soup to simmer uncovered for the full duration, and strictly use 100 percent natural groundnut paste
Cultural Context
Nkatenkwan, commonly known as Groundnut Soup or Peanut Butter Soup, is a cornerstone of Ghanaian cuisine that traces its roots to the Akan people. It elegantly showcases the peanut, a crop that has been heavily cultivated in West Africa for centuries and deeply integrated into the regional diet. Traditionally served with hearty starch staples like fufu, banku, or omotuo (rice balls), this soup represents communal dining, hospitality, and ultimate comfort in West African culture.
