Pinnacle Cinnabon is the result of a partnership between its two namesake companies and is designed to bring the flavor of the popular cinnamon roll into a bottle of vodka. The Honey Bun drink goes a bit further and adds an interesting twist via Jim Beam's honeyed bourbon liqueur (website). The cinnamon-honey mix is a delightful one, though that profile is very one-sided, resulting in what would be an overly sweetened drink and that is where the sour mix plays a vital role. By adding this sweetened sour, the balance of the drink is perfected and a great cocktail is born.
A couple of notes on the recipe... To make the fresh lemon sour, use this sour mix recipe and skip the lime. When it comes to choosing glassware, this drink can be served either up in a cocktail glass or in a collins glass, in which case I would recommend adding a little ice. Either way, it's a nice drink.