I decided to give it a try. Here are the step by step instructions:
- Go to your Layout tab,
- Select add a gadget
- Select "Featured Post"
- Scroll down to the bottom and save.
File: Blogger.svg, Wikimedia Commons. Author: ZyMOS. January 2010. (https://commons.wikimedia.org/wiki/File:Blogger.svg : 17 December 2015).
Ronen, Guy, "Highlight the Posts That Matter the Most", Blogger Buzz (http://buzz.blogger.com/2015/12/highlight-posts-that-matter-most.html : 17 December 2015).