It took my sweet, patient husband a good amount of doing, but he got it open.
We all tasted it. Some liked it more than others, but I was glad the kids were so interested and willing to try something new.
Unfortunately, I suffered the loss of my favorite mixing bowl in the process. (We wanted to catch the water/milk and taste it, too.) :(
Luckily, there is a Bed Bath and Beyond near me and I've been saving up my 20% off coupons. If all goes well, by tomorrow, I'll have three new favorite mixing bowls.