In a large skillet over medium to low heat, add the condensed milk, the dark chocolate and mix everything very well until the chocolate melts completely.
Add the butter and stir until it lifts off the bottom of the skillet.
Transfer this mixture to a medium bowl and let it cool until it reaches room temperature.
In a large skillet over medium to low heat filled with boiling water, add the almonds and let them boil for 5 minutes.
After this time has passed, drain all the water and peel the almonds.
Then, add these almonds to the chocolate mixture we prepared and mix everything very well to combine.
Transfer this mixture to a sheet of plastic wrap and roll it into a cylindrical shape.
Take it to the fridge and let it chill for at least 3 hours.
Serve.