The chocolate tart is screaming my name.

Hala...what's 85%chocolate?  please...please....Sam

it is  85% cacao dark chocolate. i.e. Lindt.  I usually get it at World market for app $2.00 a piece.  Then eat maybe 2- 3 squares. You put it in your mouth and let it dissolve - slowly. 
OI also melt it in a microwave - add a bit of butter and maybe a few drops of stevia - mix well and use it to make chocolate covered strawberries.. yummy... and guilt free (for me)
 
http://www.lindtusa.com/product-exec/product_id/44/category_ id/5/nm/Excellence_85_Cocoa_Bar

I allowed myself a bite of my friend's dessert in a restaurant but I wouldn't have it in the house.
I agree with the others you should throw it away.