In a small saucepan, combine the four ingredients. Heat over low, stirring constantly until mixture is smooth and combined (about 3-5 minutes).
Pour into a pint sized mason jar with lid and refrigerate until ready to use.
Shake before pouring into coffee.
To determine your "use by" date...go off the date of the milk you use for this recipe.
Notes
Heat the ingredients on low. The warming step melts the marshmallow fluff and helps everything incorporate. You don't want to bring it to a boil.
Stir constantly. While heating, keep gently stirring until the mixture is smooth.
Store in the fridge. I keep mine in a mason jar with a lid.
Shake before adding to coffee. The ingredients will naturally separate a bit as the creamer settles. Just give them a shake to recombine before adding to coffee.
Add to coffee to taste. Chocolate Marshmallow Coffee Creamer is on the sweet side. Add a little to your coffee at a time until you reach your desired creamy sweetness!
Add mini marshmallows . A handful of marshmallows in your creamer-doused coffee makes it even more fun to sip.