01 - 
                Warm chicken broth with sage in a big pot. Keep it barely bubbling.
              
              
              
                02 - 
                Strip garlic skin, cut through middle, take out green sprouts. Toss in boiling water for 3-4 minutes, empty water, then squash well using a fork.
              
              
              
                03 - 
                Put crushed garlic into warm broth and let it cook slowly for 10 minutes.
              
              
              
                04 - 
                Mix egg yellow part, mustard, salt, and oil with stick blender till creamy. Throw in white part if you want it thicker.
              
              
              
                05 - 
                If you want, run soup through strainer. Mix a bit of hot soup into mayo first, then stir into the pot. Warm it up but don't let it bubble. Top with extras if you want.