Creating an Angular Jamstack blog using Scully, the Angular Static Site Generator, allows developers to easily build and deploy a pre-rendered blog with Markdown content. The process involves integrating Scully into an existing Angular application, generating a blog skeleton, creating content in Markdown, pre-rendering all content as it goes, deploying to the Netlify Edge CDN, and adding CSS styling to make the blog look visually appealing. With Scully's help, developers can create a site with a home page, list of all blog posts, and individual post pages, all deployed live on Netlify for easy sharing and continuous deployment.