Creating Christmas Cornflake Wreaths is a straightforward process. Follow these steps for a delightful result:

1. Prepare Your Workspace: Spray a large bowl with cooking spray or line a baking sheet with wax paper for easy cleanup.
2. Melt Butter and Marshmallows: In a large saucepan over low heat, melt the butter. Once melted, add the mini marshmallows and stir until completely melted and smooth.
3. Add Flavor and Color: Remove the saucepan from heat. Stir in the vanilla extract and green food coloring until well combined.
4. Combine with Cornflakes: Gently fold in the cornflakes, ensuring they are evenly coated with the marshmallow mixture. Be careful not to crush the cornflakes too much.
5. Shape the Wreaths: Allow the mixture to cool slightly. With greased hands, take small portions of the mixture and shape them into wreaths (about 3-4 inches in diameter) by forming a circle and pinching the center to create a hole.
6. Add Candy Berries: Place red candy berries on each wreath for decoration, pressing them lightly into the mixture.
7. Set the Wreaths: Place the shaped wreaths on the prepared baking sheet. Allow them to set at room temperature for about 30 minutes until firm.
8. Serve or Store: Once set, you can serve them immediately or store them in an airtight container for later.