What is the fine-grained topic of the following text: Last week we featured the sixth instalment of our Bottom Of The Barrel Series- a collaborative effort between Two For The Bar and Joann Pai of Acorn Mag in which we challenge craft bartenders to use not-so-craft ingredients to create a new cocktail. Only return the topic.
Creating new cocktails with not-so-craft ingredients in the Bottom Of The Barrel Series collaboration between Two For The Bar and Joann Pai of Acorn Mag.