First, add your marshmallow root and your water to a medium saucepan. Bring to a boil and then turn off the heat. Once the mixture has cooled to room temperature, strain out the marshmallow root.
Next, add your gelatin to the bowl of your stand mixer with 1/2 cup of the marshmallow root water. This will allow the gelatin to soften.
Next, add the honey, maple syrup, and 1/2 cup of the marshmallow root water to the medium-sized sauce pan you used before (be sure to rinse it out first.)(You may have some water leftover. Just drink or discard.) Make sure your pan is not too small or your mixture may boil over. It is a horrible mess to clean up! I am unfortunately speaking from experience here. Also, don't use a large pan or your mixture may get too hot too quickly and burn. No fun!
Bring the mixture to a boil over medium heat until it reaches 240-242 degrees, no higher.
Next, turn on the stand mixer on low to mix soften gelatin. Very slowly add the honey/syrup mixture.
Once all the honey/syrup mixture is added, turn your mixer on high. Once it is almost cool, usually about 7 minutes, add your vanilla. Mix for 1-3 more minutes.
Spoon the mixture into a pan lined with parchment paper, greased with either coconut oil or avocado oil, and lightly dusted with either arrowroot powder or organic cornstarch. Choose the pan size for the shape marshmallow you like. The bigger the pan, the shallower the marshmallow. For a square marshmallow, choose and 8 x 8 pan.
Smooth the top of your marshmallow mixture with your spatula. If it is not smooth emough, you can grease your hands and pat it down.
Let your marshmallows set overnight. (You don't have to do this, but they will cut much easier.)
After your marshmallows have set up, use the parchment to life them out of the pan.
Cut with a well-greased serrated knife or pizza cutter.
Dust marshmallows with arrowroot powder or organic cornstarch (the only way to get cornstarch that is not GMO is to buy organic cornstarch.)
These roast better after they have set out a bit. I set mine on racks for most of the day before moving them to an airtight container.