African Sweet Potato and Peanut Soup [Dehydrated Meal Recipe]

Peanuts and sweet potato may seem an unlikely combo, but together they make for a satisfying high-energy soup that is highly versatile, supremely packable, and easy to prep on the trail. This dehydrated sweet potato and peanut soup draws inspiration from the groundnut soups (groundnuts = peanuts) found across West Africa — typically layered with tomatoes, onion, chilli and ginger, thickened with ground peanuts, and served with rice or millet.

It also makes great trail food, especially for the plant-based backpacker:

• Complex carbs from sweet potato + protein and fat from peanut butter = steady energy release for long days out
• Entirely plant-based with healthy, high fibre real-food ingredients
• Naturally creamy, and especially comforting in cold weather
• Super packable, lightweight, cold-soak friendly, and easy to rehydrate

Tips for Dehydrating African Sweet Potato and Peanut Soup

Puree the soup with a stick blender or jug blender, then spread thinly on dehydrator trays. Once it’s totally dry, it becomes like a brittle cracker, which you can blend up in a food processor into fine crumbs. These fine crumbs pack smaller, rehydrate faster, and give a smoother final texture.

Yes it’s a soup, but you could also use it as a sauce. Add chickpeas, lentils, kale, or anything else you’d like for a tasty peanut curry!

What About Shelf Stability?

Because this soup contains peanut butter (which is about 50% fat), its shelf life is shorter than very low-fat dehydrated meals like plain tomato sauces or lentil soups. That doesn’t make it unsafe — it just means it won’t last as long in your cupboard.

Once you’ve dried it properly (until completely brittle), almost all the moisture is gone. That means bacteria and mould can’t grow. The main thing that can happen over time is the fat in the peanuts slowly oxidising — in other words, going rancid. That process is driven by oxygen, heat, light and time, not water.

In practical terms:

• 2–4 weeks at room temperature is perfectly reasonable for trail food.
• If you vacuum seal and freeze it, you can extend quality to 1–3 months or more.
• Store it cool, dark and airtight.
• Let it cool fully before packing to avoid condensation.

If it ever smells stale, metallic, or vaguely like old paint, that’s oxidation — not mould — and it’s time to bin it.

So yes, its shelf life is a little shorter than some ultra-lean dehydrated meals. But for expedition use, short trips, or meals you’ll eat within a few weeks, it’s a very robust and reliable option.

For longer shelf life, you can substitute the peanut butter with peanut butter powder (e.g. PBfit Classic Peanut Butter Powder) which has less fat.

Rehydrating Tips

If you’ve blended the dried soup into a fine powder, you’ve done most of the hard work already. Powdered meals rehydrate far faster than flakes because the surface area is higher and water can penetrate evenly. With this soup, that makes a noticeable difference.

Hot Rehydration (Best Texture)

• Use roughly 1 part dried soup to 3 parts water by weight.
• Add boiling water, stir well, seal and insulate.
• Wait ~5 minutes, stirring once halfway through.
• Adjust thickness with a splash more water if needed.

Because the peanut component is already emulsified in the powder, it comes back together quickly and smoothly.

Cold Soak Friendly

As a powder, this soup is genuinely cold-soak friendly.

• Add cold water at the same 1:3 ratio.
• Stir or shake thoroughly.
• Leave for 30–60 minutes (longer in colder temperatures).
• Shake or stir occasionally to prevent clumping.

The texture will be slightly thicker and less silky than hot rehydration — but still satisfying and fully reconstituted.

African Sweet Potato and Peanut Soup [Dehydrated Meal Recipe]

Serves 6.

Dehydrated weight: ~100g per serving.

Rehydrating time: < 5 min with boiling water (or cold soak 45-90min)

Nutrition info per serving: 305 Calories; 9g Protein; 41g Carbs; 14g Fat

Shelf life: 1-3 months or more if vacuum sealed (For longer shelf life, omit the 120g of peanut butter. After dehydrating the soup, add 80g peanut butter powder to the full dehydrated soup mix, then portion into servings).

Make it a curry by adding dehydrated rice, chickpeas or lentils, and pretty much any vegetable you want. Learn more about how to make homemade dehydrated backpacking meals.

Print Recipe Pin Recipe

Prep Time 15 minutes mins

Cook Time 45 minutes mins

Dehydrating Time 12 hours hrs

Servings: 6

Course: Soup

Cuisine: African

Ingredients Equipment Method

Ingredients

  

• 1 tbsp olive oil
• 1 large onion finely chopped
• 3 garlic cloves minced
• 1 tbsp fresh ginger grated
• 1 tsp chilli flakes or 1 fresh red chilli to taste
• 1 tsp ground cumin
• 1 tsp ground coriander
• ½ tsp smoked paprika
• 2 tbsp tomato purée
• 750 g sweet potatoes peeled and cubed
• 1 red pepper or carrot chopped
• 1 litre good vegetable stock
• 120 g unsweetened peanut butter or dry roasted peanuts
• 1 tin 400g chopped tomatoes
• Salt & black pepper to taste
• Juice of ½–1 lime

Garnishes (optional but tasty!)

• Fresh coriander
• Toasted peanuts
• Extra chilli
• A drizzle of good olive oil
• Warm flatbread or rice

Equipment

• 1 dehydrator

Method

 

At home

1. Heat the oil in a large pot over medium heat. Add onion with a pinch of salt and cook 6–8 minutes until soft and translucent.
2. Stir in garlic, ginger and chilli. Cook 1 minute until fragrant.
3. Add cumin, coriander and smoked paprika. Stir for 30 seconds.
4. Add tomato purée and cook 1–2 minutes to caramelise slightly.
5. Add sweet potatoes, red pepper, chopped tomatoes and stock. Bring to a boil, then reduce and simmer 15–20 minutes until sweet potatoes are very tender.
   
6. Add the peanut butter (or peanuts) and mix through the soup. (Omit this step if using peanut butter powder.)
7. Blend until smooth (or keep it chunky if you like, but a smooth soup works better for dehydrating)
   

To dehydrate

1. Let soup cool completely.
2. Spread thinly (3–5mm thick) on lined dehydrator trays.
   
3. Dry at 57°C (135°F) for 8–12 hours. It should become brittle and snap easily.
4. Break into flakes or ideally blend into a powder with a food processor (if using peanut butter powder, add this now). Divide the soup into portions (I use a kitchen scale to do this). Store in an airtight container (ideally vacuum-sealed pouches).
   

On the trail

1. Add a portion of soup flakes/powder to a pot. Add ~350–400ml boiling water (roughtly a 1:3 ratio of dried mix to water).
2. Stir well and cover.
3. Wait 5-10 minutes then stir again.
4. Adjust thickness with a splash more water if needed.
5. Garnish if you’d like with toasted peanuts and a drizzle of oilve oil or salsa macha.

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