Oreo Shot

I can't find an Oreo Martini

aka Oreo Speedwagon
Ingredients
1 oz.
Kahlua®
1 oz.
Creme de Cacao
1 oz.
Bailey's Irish Cream®
1 Splash
Vodka
Directions:
Layer Kahlua, Creme de Cacao, and Bailey's (on top), then top with a splash of vodka.