Refrigerate for at least 4 hours. If you're overly eager you can pop it in the freezer for 30 minutes.
Enjoy.
Notes
Macros per bar: 598kcals, 16.6g total carbs, 3.7g fiber, 5g sugar alcohols, 8g net carbs, 57g fat, 4g proteinMacros per serving: 299kcals, 8.3g total carbs, 1.8g fiber, 2.5g sugar alcohols, 4g net carbs, 28.5g fat, 2g protein