Filter the sludge with suction using a filtration aid (like Celite), distill off most of the alcohol, dilute with water and acidify, wash with a non-polar, basify and extract with a non-polar. Dry extracts over MgSO4, filter, and evaporate the solvent to get the freebase. Vacuum distill and crystallize.
For a more verbose description, read http://www.erowid.org/library/books_online/pihkal/pihkal109.shtml (http://www.erowid.org/library/books_online/pihkal/pihkal109.shtml)