Image imported from derpibooru 
Original Description:
 
Suspicious Stew (aka “Susie Stew”) is one of a handful of witches that lives with Mystery Brew in her tavern/inn.
 
Susie prides herself as a stewardess and nursemaid. Offering homemade soup and herbal remedies to ill patrons staying in Brew’s inn.
 
She isn’t the best cook, but she always tries her best.  
One of her goals in life is to find a way to alleviate the awful taste of medicine.  
Her heart is always in the right place, but her logic isn’t always sound.  
“If hiding medicine in food works for animals, surely it will work for ponies, too. Right?”
 
Susie is a rather shy, anxious, and frazzled pony.  
Given patrons of the tavern are either hungover or have fallen ill from unfortunate potion side effects, she often has her work cut out for her.  
Despite this, she has a very calming bedside manner.
 
She is told she looks rather cute in a maid’s outfit.
 

 
Given her full name is “Suspicious Stew,” younger ponies often incessantly refer to her as “Sussy.” Not understanding what this means, she believes they are simply mispronouncing her nickname “Susie,” and so she politely corrects them.  
It does get on her nerves quite a bit, however.
 
She is named after the Minecraft item of the same name.