Costco's brand Kirkland Signature has a knack for making customers guess which brands are hidden behind its generic label ... as Grey Goose, the liquor in Costco's Cognac bottle is just the ...

Additionally, the set includes 2 Baccarat "Harmonie" tumblers, two bottles of Bitterman's bitters ... which gives the liquor a deep, rich sweetness that marries impeccably with the brand's ...