Mango sour is the ultimate Guyanese condiment, served with everything from pholourie to plantain chips. This stovetop version is made from scratch with green mangoes, hot pepper, garlic, and cumin for that bold, nostalgic flavor that reminds you of the snack stands back home.
Combine the mangoes, onion, garlic, wiri wiri pepper, geera, salt, sugar (if using), and water in a saucepan over medium heat. Bring to a boil uncovered, then continue cooking until the mangoes are very soft and can be easily crushed with a fork (about 30 minutes).
Crush the mangoes and other ingredients using a fork, swizzle stick, or whisk until the sour reaches your desired consistency. Then stir in the white vinegar and mix well to combine.
Allow the mango sour to cool completely before serving.
Notes
For a looser blender-style sour: Blend all of the ingredients except the vinegar until smooth. Add the mixture to a saucepan and cook for about 10 minutes, or until the sour no longer tastes raw. Stir in the vinegar at the end. I typically add an additional 2 cups of water for a looser sour that’s perfect for drenching pholourie or cassava chips.