Place 3/4 cups of water, 1/4 raw sugar, 1/2 cup maple syrup, 1/2 cup molasses, and 1/8 tsp. of salt into a heavy-bottomed stock pot. Stir over medium heat until the sugar has dissolved.
Stirring occassionally, heat the syrup to soft ball stage, at least 240F/116C. If sugar crystals form on the side of the pan, you can use a baking brush with water to dissolve them.
Once the syrup has reached temperature, turn off the heat and, using hot mitts, bring the pot over to the mixer.*
Turn the mixer on to low and slowly - VERY SLOWLY - drizzle the syrup mixture inside an down the side of the bowl. This slow drizzle down the side of the metal bowl ensures that the heat of the syrup dissipates sufficiently before it hits the gelatin mixture.
Slowly increase the speed on the mixer as you empty the last of the syrup into it. Once the syrup is in, place the mixing collar on your mixer (as well as a kitchen towel to block open areas) and switch the mixer to high.
Watch carefully as the syrup and gelatin combine. The mixture will lighten in color as it comes together and thickens. Once the mixture will hold a soft shape (soft peak), it's ready to remove from the bowl and place into the parchment lined dish.
Cover and set the pan aside so the marshmallows can set up undisturbed. Plain marshmallows heated to 245F/118C and with no inclusions will be firm enough to cut within 6-8 hours, if you live in a dry climate. I usually allow mine to sit overnight, or around 12 hours.
Use a pizza cutter or other sharp knife (I use an ulu knife) to cut the marshmallows into bite-sized pieces. I'll often cut the marshmallows into strips and even use scissors to snip off pieces. Keep a wet rag close by to clean your knife or scissors.
If serving at a potluck, roll in cinnamon sugar, xanthum gum, or simply plate and serve. If handing out as treats, individually wrap each piece in parchment paper and place in a jar or bowl.