In mid 1960-1970 BC had a bar box mix called coconut crunch bars. It was a two part mix with bottom layer and then an additional layer yu added to the crust after 15 min of the crust baking by itself. Is there something on the market like this or is there a recioe I coud use? I absolutely loved these and wish I could make them again...there was an apricot and a pecan mix and the three were prepared in much the same way...