While brownies are delicious and decadent in their most basic form, their versatility allows for many variations that help take this dessert to the next level. One TikTok user, @katedavidsun, recently shared a video where she elevated boxed brownies by incorporating coffee into the mix, a technique that all brownie-lovers need to try.

In the video, TikToker Kate starts a typical brownie mix with oil and eggs, but pours ¼ cup of espresso into the mixing bowl instead of water. In the video’s comments, people offered their own brownie-baking tips, like swapping water for red wine and orange peel or using butter instead of oil.

This pairing has been around for a long time and is backed by science — adding coffee to chocolate intensifies the chocolate taste without adding coffee flavors. They both go through a similar fermentation process and have nearly identical chemical makeup, as both cacao, which chocolate derives from, and coffee have caffeine.