<human>: How would someone go about accomplishing this goal?
How do I make raspberry bark harden after I've put together all the ingredients?

OPTIONS:
- Move the silicone mat with the bark in the fridge for a few hours until the bark is hard
- Move the silicone mat with the bark in the microwave for a few hours until the bark is hard
<bot>: Move the silicone mat with the bark in the fridge for a few hours until the bark is hard