Kissingcrust

from The Collaborative International Dictionary of English v.0.48

Kissingcrust \Kiss"ing*crust`\, n. (Cookery)
   The portion of the upper crust of a loaf which has touched
   another loaf in baking. --Lamb.
   [1913 Webster]

         A massy fragment from the rich kissingcrust that hangs
         like a fretted cornice from the upper half of the loaf.
                                                  --W. Howitt.
   [1913 Webster]