Roasted Cauliflower with Vinegar Plumped Raisins “Wow! How did they get the raisins to taste like that?!”, says the mouth who first tastes the surprising, but subtle, pop of flavor from plumped raisins. Once you start making plumped raisins you’ll wonder why you never made them before. It's a super fast and unique way to add variety to roasted vegetables (or green salads, baked goods, porridges or couscous for that matter). Simply use quality vinegar, hot water or juice depending on what you add them to. Since we’re Mormons we don’t use alcohol, but that’s also a popular raisin plumping choice for those who do.