Answer:
It is a gerund because it is the -ing form of a verb that is functioning as a noun: it is the object of the verb enjoyed.
Explanation:
On cold winter days, Mrs. Brown enjoyed snuggling under a blanket near the fire.
Mrs. Brown is the subject. Enjoyed in the verb. What did Mrs. Brown enjoy? Snuggling. So snuggling is the object of the verb.
Not only to make it look more professional
