Hollandaise sauce can be notoriously tricky to make (and reheat). One wrong move and the sauce can split. Not ideal!If you have some leftover hollandaise sauce, you may be wondering if (and how) you can heat it up and bring it back to its original creamy, silky glory.
Put the hollandaise sauce in a microwave-safe bowl.
Set your microwave to low power (20%).
Heat the hollandaise sauce for 10 seconds.
Check on the sauce and stir it vigorously for a few seconds.
Repeat the heating-stirring cycle until the hollandaise sauce is just warm, don’t heat it until it’s hot.
The cycle of heating and stirring might sound tedious, but it’s necessary. A few seconds too long in the microwave will be enough to split the sauce. The stirring keeps the sauce emulsified. Ideally, you would use a whisk to do the stirring, but a spoon will do as long as you give it a lot of elbow grease.
If you don’t have the option to pick a low power setting on your microwave, then go in even smaller 5 second time increments. I tested this with my sauce and it worked well.