01 -
Bring chicken broth to a gentle boil in a medium pot over medium-high heat.
02 -
Add pastina to the boiling broth and simmer for 6 to 8 minutes, stirring occasionally, until pasta is al dente.
03 -
Reduce heat to low. Slowly drizzle the beaten egg into the pot while continuously whisking the soup to achieve a delicate, silky consistency.
04 -
Stir in butter and Parmesan cheese until fully melted and combined. Adjust seasoning with salt and black pepper according to preference.
05 -
Ladle into warm bowls. Garnish with additional Parmesan and a touch of black pepper before serving.