Simply replace the unfilled areas such as "__" and "_[date]_" with your information.
I'm writing in recommendation of [name of employee/past employee] for the position of [name of position].
[name of employee] has always been a force in our organization, and his/her accomplishments have not gone unnoticed. Here are just a few of the things he/she accomplished under my watch:
[bulleted list of accomplishments]
On top of being a true professional, [name] is an outgoing and cheerful person. I would recommend [name] to anyone.
If you have any questions, please don't hesitate to contact me.
[phone number and/or email]