I could not find much on Amarillo, Amarillo Grand Marnier, or yellow Grand
Marnier. I think it is Grande Marnier with added food coloring. I do not
believe it affects the taste.
This drink also uses a yellow Grand Marnier.
http://user.tninet.se/~dfs105a/coffee.htm
L E O N A R D S A C H S
3 cl Yellow Grand Marnier
3 cl Kahlua
Hot Coffee
Whipped Cream
Mix first three ingredients and pour into a glass. Add Whipped Cream on top
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This web site (English Version) mentions a Yellow and a Red Grand Marnier:
http://www.hotelherning.dk/engelsk/bar.htm-----------------
The French Version mentions a Grand Marnier Jaune, Grand Marnier
Rouge.
http://www.hotelherning.dk/fransk/bar.htm