Let cheesecake cool on counter for about 45 minutes cover and chill for at lest 4 hours or overnight.
Turn mixture into prepared pan.
Stir until blended.
Add melted chocolate, instant coffee and salt.
Gradually add sugar mixing until well blended.
Add eggs, one at a time to cream cheese.
Beat cream cheese until soft and smooth.
Melt chocolate over hot, but not boiling water. Stir until smooth.
Press crumb mixture evenly onto bottom of pan.
Combine wafer crumbs, butter and sugar.
Bake cake at 350 degrees F in center of oven for about 40 minutes or until cake center is almost set, it will firm when chilled.
Butter sides and bottom of an 8 inch springform pan.