Best way to cheat at hollandaise?
it all “boils down” to setting the sauce at the right temperature. To make it fool-proof, you need precise temperature control, which you can achieve with a sous-vide setup.

To make sous-vide hollandaise, you just need to combine all your ingredients together and cook at 75°C for 30 minutes (these figures are from a chefsteps recipe, you can play with the numbers to get to your desired consistency), and blend them while they are hot to finish your sauce.