Pour ½ cup of cranberry tea into the bowl of a stand mixer and sprinkle the unflavored gelatin on top. Allow the gelatin to bloom for at least 10 minutes.
Add the an additional ½ cup cranberry tea, honey and salt to a small saucepan with a candy digital thermometer. Heat on medium-high and stir the mixture for the first minute only, keeping a close watch on It so that it doesn't boil over. Cook until the mixture reaches 240℉. This will take approximately 10-15 minutes.
Turn the stand mixer on low (speed 2) and slowly pour the sugar mixture in the mixer bowl. Gradually increase the speed to high speed and beat until the mixture has doubled, almost tripled, in size. It will resemble marshmallow fluff and feel cool to the touch. This takes approximately 6-8 minutes.
While the marshmallow is mixing, line a 9x9 pan, covering both the bottom and the edges of the pan with parchment paper. Stir the powdered sugar and arrowroot powder together in a separate bowl and dust onto the parchment paper.
Quickly pour the marshmallow into the square pan and flatten the top with a rubber spatula. Dust more powdered sugar mix on top and allow to set a minimum of 6 hours or overnight.
Once set, lift out of the parchment, invert onto a powder sugared cutting board, and cut into squares with a sharp knife. I also powder my knife to keep it from sticking. Toss the pieces in more sugar to prevent clumping.
Enjoy immediately! They are light, sweet, fluffy and melt-in-your-mouth soft!