In a saucepan set over medium heat, warm the heavy cream, condensed milk and cocoa powder, and bring to a simmer.
2. Step
Place chocolate chips in a heat-proof bowl, and pour on top the top cream mixture. Allow to stand for 1 minute before stirring to combine, until thick and smooth.
3. Step
Using a cookie scoop, spoon the mixture into a silicone mini muffin pan. Use a butter knife to smooth the tops as needed.
4. Step
Garnish the tops with the marshmallows. Insert a popsicle stick into the middle of each.
5. Step
Freeze for 2 hours, or refrigerate for 4 hours.
6. Step
To serve, dissolve a stick into a mug of hot milk.
