The bottle said 24 oz on the packaging. Since I only needed 16 oz, I poured it into a measuring cup. Two cups = 16 oz, right? Well...yes and no.
In this case, the bottle was empty once I hit the 2 cup mark on the measuring cup. So where did the other 8 oz go?
It turns out that we measure ounces by WEIGHT as well as VOLUME. And Hersheys, being really smart, knows that if they put the weight (24 oz) on the bottle, dummies like me who HATED math as it was and whose intellect was further insulted by the insane system of measurement in this country would be fooled into thinking they'd have enough for 1.5 batches of awesome chocolate mint brownies.
Oh well. It's not technically fraud, but it is very annoying. Makes one yearn for the metric system.
I'll post photos and recipe when they're done...it's a 3 stage process but oh so very worth it!