When in a hurry, even the esteemed Julia Child endorsed a blender hollandaise that is extremely easy, and only needs a little patience. Put three egg yolks, 1/4 teaspoon salt, a pinch of pepper and 1 tablespoon of lemon juice in the blender.
Meanwhile, melt a stick of butter and pour it into a measuring cup.
Whiz the egg yolk mixture for a couple of seconds at high speed. Then, turn the blender on high again and through the feeder opening, *drizzle* the melted butter in, in a very thin stream. The result will be a creamy hollandaise sauce that rarely breaks. It's not as scary as it sounds.