A Ranger Cookie is an improvised

confection Confectionery is the art of making confections, which are food items that are rich in sugar and carbohydrates. Exact definitions are difficult. In general, however, confectionery is divided into two broad and somewhat overlapping categorie ...

created through the use of

MRE A Meal, Ready-to-Eat (MRE) is a self-contained, individual field ration in lightweight packaging purchased by the United States Department of Defense for its service members for use in combat or field conditions where other food is not avail ...

condiments. The cookie is created by baking sugar and coffee creamer over a heat source. Depending on the MRE variant, other ingredients can be added to the cookie.

References

Military food of the United States Cookies {{US-dessert-stub