The Collaborative International Dictionary of English v.0.48:

Melada \Me*la"da\, Melado \Me*la"do\, n. [Sp., prop. p. p. of
   melar to sugar, candy, fr. L. mel honey. See Molasses.]
   A mixture of sugar and molasses; crude sugar as it comes from
   the pans without being drained.
   [1913 Webster]