In a large bowl, combine the rice bubbles, coconut, powdered sugar, cocoa powder, and salt.
In a heatproof bowl set over a pot of simmering water (make sure the bowl does not touch the water), or in a microwave, melt the chocolate. Add the coconut oil and mix until well combined. The heat of the chocolate should be enough to melt the coconut oil, but re-warm very briefly to help incorporate if needed.
Pour the chocolate mixture into the bowl of dry ingredients, and mix well with a spatula until well combined.
Spoon mixture into paper patty cases and refrigerate until firm