Grease a 9x13 pan with coconut oil.
In a large mixing bowl, add 1/2 cup of warm water. I gently heat mine on a burner for just under a minute. You want it just slightly warm to the touch.
Then add the grass-fed gelatin to the warm water and gently mix it for a few seconds. Let it sit for about 5 minutes.
Next, add the remaining 1/2 cup of water, maple syrup (or honey) and sea salt to a saucepan and bring to a very low boil (especially if you are using raw honey.) As it slightly boils, continue to whisk this mixture for about 5-8 min.
Now use a standing mixer or hand mixer to blend the water/gelatin mixture at low speed and slowly pour the honey/water mixture into the mixing bowl. Mix for another 10-15 minutes. It will slowly start to thicken and lighten in color.
At the end of your mixing, add vanilla and then quickly pour the mixture into your greased pan.
Set in the fridge for at least 4 hours (we let ours sit overnight).
Cut with a knife into small squares.
Store these marshmallows in a glass jar with a lid on your counter. They last about 2 weeks.