Answer:

OREO

AnswerCrossword Clue
OREOAfter-school snack
OREOCookie favorite
OREOCookie introduced in 1912
OREOCrossword cookie
OREOHydrox competitor
OREOHydrox lookalike
OREOLunchbox cookie
OREOLunchbox treat
OREONabisco treat
OREOPopular cookie
OREOPopular sandwich cookie
OREOTwo-tone treat
OREOCream-filled cookie
OREODessert sandwich
OREODunkin' cookies?
OREOGrade-school snack
OREOHydrox rival
OREONabisco goodie
OREOSandwich cookie
OREOSandwich snack
OREOClassic cookie
OREOCookie with three parts
OREOGoodie in the lunchbox
OREONabisco nibble
OREOSnack in a stack
OREOSweet sandwich
OREOOft-dunked cookie
OREO"Biscuit" introduced in 1912
OREOPopular crossword cookie
OREOBranded treat in some ice creams
OREOCookie shown with rainbow filling in ads on Gay Pride Day
OREOCookie that now has a "cookie dough" flavor
OREOCookies and cream ice cream cookie
OREOCookie
OREONabisco nosh
OREOTwistable treat
OREOChocolate cookie
OREOSandwich creme
OREOBlack-and-white treat
OREOBlack-and-white bite