Place enough water in the bottom of a 4-quart saucepan
to come 1 inch up the sides. Bring to a simmer
over medium heat.
the chocolate chips
with the liqueur
and vanilla in a medium metal bowl set over the simmering water, stirring often with a rubber or silicone spatula
. Combine the tofu
, chocolate mixture and honey in a blender
or food processor and spin until smooth, about 1 minute. Pour the filling into the crust and refrigerate for 2 hours, or until the filling sets firm.