Ok, so the color may be off, but the taste is dead on.
A close friend of mine came up with this delicious martini. I really like the fact that it uses coconut rum because, unless my sister in law is in town, I have absolutely no use for the stuff otherwise. I also substituted amaretto for the Frangelico with fairly good success but the Frangelico is preferred. Fair warning, these are strong and meant to be drunk fairly quickly.
Doug’s German Chocolate Cake Martini
2 ounces quality vanilla vodka
2 ounces Frangelico
¼ ounce coconut rum
Put everything in a cocktail shaker filled with ice. Shake and serve immediately.
Rufus' Food and Spirits Guide 
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Oooh… I’m so glad Katherine mentioned this drink! This will be a perfect dessert cocktail!! And hopefully since its after dinner with tummy’s filled the strong alchol will not leave my guests too tipsy!!