The tutorial provides a step-by-step guide on how to send an SMS using Blazor and the Vonage SMS API, covering topics such as creating a new Blazor project, adding the Vonage NuGet package, injecting an SMS service into a razor page, and configuring the app with the necessary settings. The process involves setting up a Vonage API account, installing the required packages, creating a custom SMS service class, and writing C# code to send an SMS using this service.