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 mangoes, onion, garlic, wiri wiri pepper and 1/2 cup water in a food processor or blender and blend until really fine. If using a blender add all of the water.
Then place blended ingredients, cumin powder, salt and 1 cup water in a small saucepan on medium heat and bring to a boil
Next, once ingredients come to a boi, boil for 5 minutes on high heat stirring constantly to avoid burning or sticking, then reduce heat to low and let simmer for 10 minutes
Then add vinegar if using, mixing together well. Continue to cook for another 5 minutes then remove from the heat and allow to cool completely before using