<P> Lay 's Barbecue - flavored potato chips , which appeared in 1958 , was the only flavor available in the United States other than the conventional salted chip until the introduction of Sour Cream & Onion in the late 1970s . </P>
<P> Lay 's Barbecue - flavored potato chips , which appeared in 1958 , was the only flavor available in the United States other than the conventional salted chip until the introduction of Sour Cream & Onion in the late 1970s . </P>
when did lays sour cream and onion chips come out
when did lays sour cream and onion chips come out
the late 1970s
the late 1970s