Groundnut Sauce

Groundnut sauce is the backbone of countless West African meals, a savory-spicy peanut sauce that turns plain rice or grilled meat into something with real depth. Onion fries first in peanut oil to build a sweet base, then tomato and roasted jalapeño cook down until soft and jammy.

The smart move here is mixing the peanut butter with water and arrowroot off the heat first. Adding cold peanut butter straight to a hot pan tends to seize into clumps, but the slurry pours in smooth and thickens to a glossy, almost satin-finish sauce as it warms. The arrowroot keeps the texture lighter than a cornstarch thickener.

Chef Tips

• Use natural peanut butter with no added sugar so the sauce stays savory rather than sweet.
• Roast the jalapeño until the skin blisters before chopping. The char adds smoky complexity that raw chiles can’t match.
• Whisk constantly when the peanut slurry hits the pan to prevent the arrowroot from clumping at the bottom.
• Thin with extra hot stock or coconut milk if the sauce tightens too much as it sits.

Variations

• Stir in a teaspoon of grated ginger and a clove of garlic with the onion for a more aromatic Ghanaian style.
• Add a tablespoon of tomato paste for a richer, deeper red sauce closer to Senegalese mafe.
• Swap arrowroot for a slurry of rice flour if you need a gluten-free, fully West African pantry version.