Store it in your Grinch Decorated Mason Jar. We think it’s best stored in a dark, cool place, like in a kitchen cupboard. How Long Does The Cookie Mix Last? Dump cake mix in container and add 3 drops of green food coloring gel. Whisk together and add cake mix to Mason Jar. Once you bake them, we suggest to enjoy them within 2-3 days or they’ll start to harden. If leaving on the counter, store in an air tight container (like another mason jar!) Preheat oven to 375F. Take dough out of fridge and roll into Tablespoon sized dough balls. Line baking sheet with parchment paper.

This adorable recipe comes with a printable tag so you can share this adorable Grinchmas gift with a friend or family member who loves The Grinch also!