This pungent, aromatic paste can be used as a marinade for meat, poultry and seafood or added to sauces. It can be refrigerated for up to 5 days. More Terrific Condiments
In a small saucepan, combine the onion and water and bring to a boil. Simmer over low heat until the onion is just tender, about 15 minutes. Using a slotted spoon, transfer the onion to a blender and puree.