at least one visible filling layer located in between and bonded to {TAIL ~ each} of {HEAD ~ the at least two cereal layers} 
at least one visible filling layer located in between and bonded to { TAIL ~ each } of { HEAD ~ the at least two cereal layers }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD