years ago there used to be a marshmellow cookie with two small vanilla
cookies on the outside of the marshmellow. it came in a blue box and i
think it was by nabisco. i am serching for the correct name of the
cookie

I believe the cookies you have in mind are the "Nabisco Marshmallow Sandwiches". 

Here are some links about them: 

?We are frequently contacted by people who fondly remember a cookie
composed of soft marshmallow gently pressed between two soft vanilla
wafers.?

?These cookies were sold in the 1940s-1970s and came in twin
celophane-wrapped blue packages. Many of the people who remember this
cookie are from the greater New York area. The cookie? Marshmallow
Sandwiches. The company? Nabisco. Sadly, they are no longer in
production. ?

?The earliest mention we find in print referencing these cookies is an
A & P advertisement, New York Times, July 1, 1932 (p. 10) "ZuZus,
Lemon Snaps, Cheese Tidbits, Vanilla Wafers, Chocolate Snaps or
Marshmallow Sandwich, package 4 cents; regular price 5 cents."

?The last? A Waldbaum's [grocery store] ad, New York Times, September
9, 1964 (p. 39). "Nabisco Marshmallow Sandwiches, 2 twin pkgs. 35
cents."

Food Timeline history notes
http://www.gti.net/mocolib1/kid/foodmarsh.html

The Hometown Favorites website provides an extensive list of
discontinued products. Nabisco Marshmallow Sandwiches is included on
this list.
http://www.hometownfavorites.com/shop/btwgb.asp


"At bedtime came cookies and milk. There were Oreos, of course, but
then there were also those wonderful marshmallow sandwiches from
Nabisco-two wafers squashing a marshmallow center. And Mallomars, and
sugar wafers, and fresh from Katz's, if we'd been especially good, a
bear claw or a custard donut, although they were usually reserved for
weekend breakfast." ---http://www.brown.edu/Research/Catskills_Institute/tanney/bungalow13.html


Nabisco Marshmallow Sandwich   
?Cookie made by Nabisco, that consisted of a marshmallow sandwiched
between two soft vanilla wafers.?
http://www.inthe80s.com/food/n.shtml

 
Search criteria:
Marshmallow between vanilla cookies +Nabisco


I hope this helps!

Best regards,
Bobbie7

THANK-YOU FOR THE ANSWER I NEVER THOUGHT TO GO ON GOOGLE AND ASK THE
QUESTION. ITS TWO YEARS SINCE MY FRIENDS AND I THOUGHT OF THE COOKIE.
NONE OF US WERE SURE OF THE NAME

Thank you for the five stars and tip. I'm glad I was able to help you
identify the cookie!

Best regards,
Bobbie7