Hollandaise sauce is one of these sauces that are really easy to make so you will never feel like you need to buy it ever again. Ready in a jiffy and a lot tastier.
Melt the butter and make sure it’s on the hot side and not just melted.
In a taller glass or mug (the bottom must be wide enough for the blender to sit/reach right at the bottom of it), add all the ingredients egg yolks, lemon juice, mustard and cayenne pepper. Turn the bender on and blend for 5 seconds or so.
Drizzle in the butter slowly in a little stream or just add it in 3 slots at an interval of 20 seconds while blending continuously. Move the blender up and down a few times. Once all of the hot butter has been added blend for 10-15 more seconds and it’s done!