Q: I had the panna cotta divided into four Tupperware containers, and refrigerated everything for approximately six hours. The panna cotta did not set at all and I am curious if you have any idea what I may have done wrong.
Sent by Zach
Editor: Luckily we've got an expert on panna cotta to consult about these things; Faith wrote the book on it! In her lesson on how to make panna cotta she addresses what do to if your panna cotta doesn't set. One potential problem is the gelatin didn't melt all the way or you boiled the gelatin mixture. When you boil gelatin, it loses its thickening power and won't set up as desired.
The other issue is not giving the panna cotta enough time to set up. On your next go, take a look at Faith's tutorial and follow the panna cotta ratio below.
Faith's Basic Panna Cotta Ratio
1 1/2 cups milk + 1/3 cup sugar + 2 1/4 teaspoons gelatin + 1 1/2 cups cream