The menu expansion, unusual for the chain, may be in response to recent reports that found only one in five millennials has tried the iconic burger. There is some worry that the chain "has gotten less relevant," a franchisee wrote in a memo obtained by The Wall Street Journal last month.
McDonald's has recently seen a rise in U.S. sales after years of stumbling profits, Fortune reported, bolstered by the chain's switch to serving breakfast menu items all day and promotions like it's McPick 2 offer.
"Still, that growth was below McDonald's pace in preceding quarters," according to Fortune. "McDonald's shares closed at $111.72 on Thursday, down from a recent all-time high of $131.96."