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Once the desired color and texture are achieved, the onions are tasted and adjusted with salt and pepper to perfect the balance of flavors. He stresses that the finished condiment should taste nuanced, not overly sweet or sour, with the right level of seasoning.
Storage and Versatility
After completing the caramelization, the onions are spread on a tray to cool and release any remaining steam. Removing moisture is critical—especially if you plan to freeze them—since excess water can turn to ice and ruin the texture.