Sous Vide Is the Combine of Cooking (and It’s Not Just a Joke) Have you ever moved from imperative to reactive, functional Combine code and thought: “Wait… why doesn’t everything work like this?” That’s exactly how I felt after discovering sous vide cooking. Sous vide isn’t just a trendy food technique. It’s a declarative, functional, reactive system for cooking. It replaces the chaos of heat guessing and overcooked edges with precise timing, temperature control, and fully composed flavour pipelines.

One of the standout features of SwiftUI is its reactive paradigm, which seamlessly updates views as data changes. This powerful approach isn’t confined to SwiftUI alone; it can also be harnessed in UIKit through the use of the Combine framework, and starting with iOS 17, through the new Observation framework. In this post, we’re going to explore using MVVM with UIKit, leveraging Combine to achieve reactive behaviors similar to SwiftUI. I hope you find this information useful and that it helps you improve the way you create and think about your applications.