Why Tiramisu?
Because why not :p
Where to Buy
Two places immediately come to mind: Czaczacza and Alongside Coffee (branded eyyyy)
DIY Version
The easiest recipe consists of graham crackers, instant coffee powder, and homemade cream filling. Assembly is the fun part because you can stack these ingredients into however many layers you want. Then chill for at least 4 hours (overnight, if you want it colder), serve, and enjoy!