Question: what are eggos in stranger things?
Answer: Triple-Decker Eggo Extravaganzas are an invention of Hopper's. They are made with three Eggo waffles with whipped cream layered in-between each waffle, and topped with various sweets such as Hershey's Kisses and jelly beans. Hopper made them as a special treat for Eleven when she was living with him.