Dear [First Name],
 
I am writing to highly recommend [Name of the person being recommended] for any professional opportunity that he/she may be pursuing. I have had the pleasure of working with [Name of the person being recommended] for [duration of time] at [company/organization name] and have had the opportunity to observe his/her work closely.
 
[Name of the person being recommended] has consistently demonstrated exceptional [quality, skill, or trait] throughout his/her time at our organization. He/She is an excellent communicator, a strategic thinker, and has a keen eye for detail. He/She has consistently exceeded expectations in his/her work and has been instrumental in achieving several significant milestones for our team.
 
I have been particularly impressed with [Name of the person being recommended]'s ability to [specific example of achievement or accomplishment]. He/She is a valuable asset to any team and has a proven track record of success.
 
I am confident that [Name of the person being recommended] will make a significant contribution to any organization that he/she joins. He/She is a dedicated, hardworking, and talented individual who I am proud to endorse.
 
Please do not hesitate to contact me if you require additional information or have any questions. I highly recommend [Name of the person being recommended] without reservation.
 
Sincerely,
 
[Your Name]