01 -
Drop sage into a pot of simmering broth while getting the garlic ready.
02 -
Slice garlic cloves in half, take out the core. Boil for a few minutes, drain, then mash smooth.
03 -
Let mashed garlic cook in the broth over low heat for about 10 minutes.
04 -
Use a hand blender to mix yolk, mustard, salt, and oil until thick. Stir in the egg white as needed.
05 -
If desired, strain the soup. Slowly mix some hot broth into the mayo, then stir it into the pot. Warm the soup gently, but don’t let it boil.