Chas. save yourself the hassle.

Throw it away - it's two years old anyway - and spend the (what) $2-$3
for a new, non-brick packet.

Most dry goods only have a 12month use-by-date and if it's hard as a
rock, it's absorbed moisture from your pantry (and other smells aromas
as well) so it's probably not worth using.

just my opinion/2cents worth.

LadyJane
--
"Never trust a skinny cook!"