Tiktok has taught us a thing or two when it comes to genius food ideas. We all remember the excitement when whipped coffee (also known as dalgona coffee) went viral on TikTok, and the social media app’s latest coffee trend of mixing a protein shake into your cup of joe is yet another tasty food hack we love. Protein coffee, or #proffee, took the platform by a storm for the tasty, nutritious kick it adds to our daily coffee — and for being a surprisingly simple alternative to the more complicated coffee concoctions that the app has highlighted. Most TikTok users opted to use Premier Protein for their proffee and if you have yet to try the coffee trend for yourself (or if you’re in need of a protein mixer restock), you’re in luck because Costco is selling an 18-pack of Premier Protein — and it’s on sale for a limited time. 

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