Onion marmalade is a sweet and savory condiment made primarily from onions, sugar, and vinegar. The onions are typically caramelized to enhance their natural sweetness, and the mixture is simmered until it reaches a thick, jam-like consistency. This process allows the flavors to meld together, creating a rich and complex taste. Often used as a topping for meats, cheeses, or sandwiches, onion marmalade adds depth to various dishes. It can be served alongside charcuterie boards or used as a spread on artisan bread. Its versatility makes it a popular choice for enhancing both everyday meals and special occasions.