DO CARAMEL - Peel wrapper off the can of condensed milk. Place can in a small saucepan filled with brown sugar. Boil covered for 1 hour. Cool can for 10 minutes. Transfer condensed milk into a large bowl. Add 2/3 cup of crushed Grahams Chocolate and cocoa powder to the condensed milk. Mix.
PREPARE BITES - Put the rest of the crushed Grahams Chocolate into a plate. Coat each piece of banana with caramel mixture. Roll the caramel coated banana pieces in the crushed Grahams Chocolate and form into balls.
FREEZE for 20 minutes. SERVE.