So, to answer the big question: most buttercream cakes don’t need refrigeration for a day or two, as long as they’re simple and your home isn’t a sauna. But if in doubt, trust your gut—and your fridge.
My personal rule? I let my buttercream cakes sit on the counter for the first day to shine. After that, into the fridge they go, with a warm-up before serving. It’s the best of both worlds.
At the end of the day, you’re the boss of your cake. Experiment, taste, and see what makes your frosting happy. After all, isn’t that the fun of baking? You get to be the frosting president.
Now go forth and eat that delicious buttercream—room temperature or cold, it’s still pure magic.
