Ghanaian Pumpkin Groundnut Soup

The Gold Coast clay-pot classic: pumpkin slow-simmered with roasted groundnut paste, tomato, onion, ginger, and scotch bonnet until rich, russet, and deeply savoury, the sweetness of the squash balancing the heat and the nutty depth

Origin: Gold Coast, Ghana

From the journey of Pumpkin & Squash.

Groundnut soup, nkatenkwan in Twi, is one of the cornerstones of the Ghanaian table, a rich, russet stew built on a base of roasted groundnut (peanut) paste loosened to a velvety body and seasoned with tomato, onion, ginger, and the fierce fragrance of scotch bonnet chilli. The dish belongs to the deep West African tradition of seed and nut soups, a lineage older than the groundnut itself: long before the American peanut arrived through Portuguese trade, the cooks of the Guinea Coast were thickening their soups with the ground seeds of native cucurbits, and the new groundnut slipped seamlessly into that framework. The pumpkin, another American arrival carried east by Portuguese vessels working the Gold Coast around 1600, found an equally natural home in the pot. Its starchy sweetness balances the richness of the groundnut and the heat of the chilli, and the squash flesh breaks down to help thicken the soup from within. Served with a smooth mound of fufu, omo tuo (rice balls), or plain rice, groundnut soup with pumpkin is a complete and sustaining meal, and one of the most beloved comfort foods of the Akan kitchen.

Ingredients

  • 600 g pumpkin or firm orange squash, peeled, deseeded, and cut into chunks
  • 150 g smooth natural groundnut (peanut) paste, unsweetened
  • 2 ripe tomatoes, roughly chopped
  • 1 large onion (half blended into the base, half finely chopped)
  • 1 tbsp fresh ginger, grated
  • 2 garlic cloves, crushed
  • 1 scotch bonnet chilli, left whole for fragrance or chopped for full heat
  • 1 tbsp tomato purée
  • 800 ml chicken or vegetable stock (plus more as needed)
  • 2 tbsp groundnut or other neutral oil
  • salt, to taste

Method

  1. Blend the tomatoes, half the onion, the ginger, and the garlic to a smooth purée. Loosen the groundnut paste in a bowl with a few ladles of the stock, whisking to a smooth, pourable cream with no lumps.
  2. Heat the oil in a heavy pot and soften the chopped onion for 5 minutes. Add the tomato purée and the blended tomato base and cook over medium heat for 10 minutes, stirring, until thickened and the raw smell has cooked off.
  3. Stir in the loosened groundnut cream and the remaining stock. Add the pumpkin chunks and the whole or chopped scotch bonnet, season with salt, and bring to a gentle simmer.
  4. Simmer gently, uncovered, for 30 to 35 minutes, stirring regularly, until the pumpkin is soft and the soup has thickened to a rich, coating consistency. Skim any oil that rises if you wish, though a little is traditional and welcome.
  5. Taste and adjust the salt and heat, loosen with a little more stock if too thick, and serve hot with fufu, rice balls, or plain rice.

Notes

This vegetarian version lets the pumpkin and groundnut carry the dish, but groundnut soup is just as often made with chicken, smoked fish, or goat, browned at the start and simmered until tender alongside the pumpkin. Use a smooth, unsweetened, natural groundnut paste rather than a sweetened commercial peanut butter, which would throw the savoury balance. A firm, sweet, orange-fleshed squash gives the best body. The whole scotch bonnet is the Ghanaian cook's tool for controlling heat: its fragrance is as important as its fire.

The Gastrographer

The Gastrographer

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Ingredient originTrade or transit route
Became a culinary stapleColonial / trade control
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