Does any national producer of ice creams provide an unembellished
cinnamon flavor as part of its regular line?

Thanks for asking!

The answer is YES. Dreyer's/Edy's Grand offers plain Cinnamon Ice
Cream "with flecks of real cinnamon". This national brand is available
across the U.S. in Dreyer's and Edy's Grand Ice Cream parlors as
handpack.

Ice Cream Parlor Flavors - Cinnamon
http://www.dreyersinc.com/partnering/f/flavor.asp?b=104&f=2210
http://www.dreyersinc.com/partnering/foodservice.asp?b=105

Grand Ice Cream is sold as Dreyer's in the West and Edy's in the East.
See distribution map:

Dreyer's/Edy's Product Distribution map
http://www.dreyersinc.com/partnering/distribution.asp


LOCATING THE PRODUCT NEAR YOU 
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Several methods are possible. I called a local business that sells
Dreyer's Ice Cream by the cone or cup. They had Cinnamon among their
current selections, though they admitted that it is more popular in
the Fall than Spring.

A search of your local phone book, or a Google search for: 

"ice cream parlor" Grand Dreyer's OR Edy's YourState 

may turn up a location near you. 

Internet YellowPages.com might be another source locator. Select the
Search By: Option Name of Business, enter Dreyer's (or Edy's) Grand
Ice Cream into the Name of Business textbox, select your state, and
check the results. This search will likely list both the local
distributors, and Ice Cream Parlors.

Yellow Pages
http://www.yellowpages.com/

Dreyer's Inc. may be contacted directly at:

Dreyer's Grand Ice Cream, Inc.
Consumer Relations
5929 College Avenue
Oakland, CA 94618
P Dreyer's (877) 437-3937
  Edy's (888) 590-3397
F (610) 871-2275

Or through a Contact Form available on their website. If using the
Contact webform, select "Product Related" in the first drop down menu.

Contact Dreyer's
http://www.dreyersinc.com/contact.asp


**********************************************************************


Google Search Terms:

"cinnamon ice cream" -recipe -recipes


Should you have any questions about the information or links provided,
please, feel free to ask.

Ice Creamily,

--larre

I have yet to find it, but if you say so.....