Delmar's Deli-Grocery is a local bodega that sells Delmar's sandwiches.
Delmar ran and operated a deli in Queens, with his sandwiches being touted as the best the borough had to offer. Peter Parker was one of his regular customers, who visited after school to buy food. Parker's frequent visits caused him and Delmar to form a friendship, as well as familiarize Delmar with Parker's aunt May. Delmar also came to know Aaron Davis as well due to his frequent visits to the Deli.
Delmar witnessed Spider-Man fighting a group of criminals wearing cardboard masks of the Avengers' faces , which he mistook as Spider-Man fighting the actual team. During the fight his shop was destroyed only for Spider-Man to come save him and his cat, Murph.