1.First Go to Feed2JS Website.Look at the picture below.

2.Now fill in the form above.

URL Enter the web address of the RSS Feed :

http://yourblogname.blogspot.com/feeds/posts/default

Fill Other informations as your choice.Look at the example below.

3.Now Click on 'Generate JavaScript'.Now you can get your JavaScript code.

4.Log in to your dashboard--> layout- ->Page Elements

5.Click on 'Add a Gadget' on the sidebar.

6.Select 'HTML/Javascript' and add your JavaScript code and click save.

Now You are done.