Not only is this offensively racial, it's an insult to an amazingly complex and powerful flavor.
Vanilla is, according to the OED, "A pod produced by one or other species of the genus Vanilla (see sense 2), esp. V. planifolia. Chiefly in pl."
Ah, yes. A pod. We were just talking about pods. Continuing in the OED with the oldest appearances of "vanilla" in the English language:
1662 H. Stubbe Indian Nectar ii. 11 They added‥the Vaynillas [to the chocolate] for the like ends, and to strengthen the brain....Strengthen the brain!
1673 J. Ray Observ. Journey Low-countries 485 Vanillas which they mingle with the Cacao to make Chocolate....
1697 W. Dampier New Voy. around World iii. 38 There grow on this Coast Vinelloes in great quantity, with which Chocolate is perfumed...
1748 Philos. Trans. (Royal Soc.) 45 160 The Vanelloe. With the Fruit of this Plant the Spaniards perfume their Chocolate.