Salmorejo is a thick cold soup from Córdoba, Spain, traditionally made by emulsifying ripe tomatoes with stale bread, olive oil, garlic, and sherry vinegar. The bread serves as both thickener and emulsifier — its starches absorb liquid and bind with oil to create a velvety, spoonable consistency far thicker than gazpacho. Gemma's innovation was recognizing that deeply roasted carrots could replace tomatoes entirely: their concentrated natural sugars, vibrant color, and soft texture blend seamlessly with bread and oil into a purée that holds its shape on a plate. The technique works with any vegetable that roasts to soft, sweet richness — beetroot, butternut squash, and roasted red pepper are all excellent candidates. The key steps are: soak day-old bread briefly in warm water and squeeze out excess before blending (too wet and the purée becomes soupy), roast vegetables until genuinely caramelized for depth of flavor, and drizzle oil in while blending to create proper emulsification. Sherry vinegar is non-negotiable — its sharp tang provides the acidic backbone that distinguishes salmorejo from a simple purée and prevents the dish from tasting one-dimensionally sweet.