In her recently published piece, Wingfield asserts that a 16-ounce bottle of Costco vanilla extract will run you $11.99, but former chef and writer Lizzy Brisken said in Business Insider that the vanilla costs $15.99, which is the price posted on the official Costco website. However, the extract has been subject to some extreme swings in price — once, in 2020, a bottle cost $24.89.