I had no vanilla-flavored vodka, so added a few drops of Bob's Vanilla Bitters, also substituting clear for dark creme de cacao. I finally got a cream float to work! Very tasty dessert-style cocktail. Well done recipe!
This was an exercise in substitutions. No vanilla vodka so added 1/4 tsp Mexican vanilla extract. No Chambord so muddled 4 raspberries instead. Only have white creme de cacao. Simon is right: needs more cherry so added 1/2 tsp Luxardo cherry syrup and a Luxardo-on-a-cocktail-sword garnish. Added a dash of Angostura cocoa bitters, just because. Used coupes. Everything else per Simon's recipe. Wife agrees it's pretty tasty. All we need now is a Schwarzwalder Kirschtorte to enjoy with it!