This isn't really a recipe so much as it is a single instruction for transforming rich hollandaise sauce into a spreadable butter. If you have a thick hollandaise sauce, which is made out of mostly eggs and butter, then when you put it in the fridge it will solidify into the perfect consistency for spreading onto toast. Put a bowl of the butter on the table for brunch along side toasted English muffins and scrambled eggs. So easy but just as delicious as Eggs Benedict!