CADBURY DAIRY MILK OREO PEANUT BUTTER milk chocolate bar REVIEW Seems like OREO cookies and their variety of flavours have become so popular that now they are being put into other sweet treats by different brands. CADBURY came out with the DAIRY MILK OREO PEANUT BUTTER flavour milk chocolate bar a few months back. This bar is apparently exclusive to Europe. The packaging is the usual CADBURY purple and it shows an OREO cookie with peanut butter filling and a swerve of peanut butter colour but not any depiction of chocolate at all oddly enough. It looks like a thick regular milk chocolate tablet bar. It has a strong peanut butter scent and milk chocolate together. Looking at its cross section it has a lot of peanut butter filling and it seems like only one side of it has OREO bits in it.