How to add Facebook like Box in Blogger Blog

Steps to add Facebook like Box:

• This process includes the editing of your Blog's template, so it is recommended to take a backup of your Blog. First click on the template from your Blogger Dashboard. Then click on Backup/Restore and download the template from the pop-up window.
• Now that you have taken the backup, you are ready for the process. Visit the Facebook Developers.
• You will see a window like the one shown below.

• Customize the look and feel, height, width of your Like box from this window.
• Replace your page link with https://www.facebook.com/FacebookDevelopers 
• Once you are done with the customization, click on Get code. It would pop-up a window like the one shown below.
• Click on IFRAME
• And copy the code 
• Go to your layout click on  Add a Gadget   select   HTML/JavaScript and Past the code of IFRAME

Now You Done