Add the heavy cream to a large bowl or the bowl of a stand mixer, and beat on high for 3 minutes.
Add sweetened condensed milk, and beat on high for 1 minute.
Slowly mix in cocoa powder.
Add marshmallows, chocolate chips, and almonds, then fold in.
Pour into a bread pan, and cover with saran wrap.
Freeze for at least 8 hours, or overnight, before serving.