Step 1 : Introduction to the question "What snack food was legally barred from calling its product "chips"?"
...The container tubes for Pringles currently label the product as “potato crisps”. While Pringles are often thought of like a potato chip, technically it may just be referred to by its parent company as “crisps”. Pringles were originally known as "Pringles Newfangled Potato Chips", however, there were objections from other snack producers to the brand using the term potato chip to describe Pringles. The US Food and Drug Administration ruled in 1975 that Pringles could only use the word "chip" in their product name within the following phrase: "potato chips made from dried potatoes". Rather than do this, the company began referring to Pringles as potato "crisps" rather than potato chips.
Step 2 : Answer to the question "What snack food was legally barred from calling its product "chips"?"
Please let us know as comment, if the answer is not correct!