Get one of the sugar substitutes like Ideal No Calorie Sweetener http://www.idealsweet.com or Monk Fruit In The Raw http://www.intheraw.com/products/monk-fruit-in-the-raw and some cocoa powder. 2 tablespoons cocoa powder 2 tablespoons of the sugar substitute (adjust this to taste) 1 cup unsweetened almond or soy milk 1/4 teaspoon vanilla extract Adjusting the amount of the sweetener will make up for the unsweetened milk. There's a low carb marshmallow recipe here, but I haven't tried it. http://ketodietapp.com/Blog/post/2013/11/16/Healthy-Low-Carb-Marshmallows If you try it, let me know how it goes.