If a recipe ever calls for softened butter, it can go one of two ways. Either it can go down without a hitch because you keep your butter on the counter anyway, or it'll be a disaster because you keep your butter in the refrigerator. But if your experiences are more like the latter, you'll be happy to know that this grandma hack can help you soften butter very quickly.
All you need to do is fill a glass with boiling water and keep it there for a few minutes. Then, pour out the water and place the glass upside down on top of the stick of butter. Within a minute or so, it'll be soft.