Grilled Banana Splits

The perfect easy and tasty dessert to end your cookout.

4 large firm-ripe bananas, skins washed with detergent to remove any residue
1 bar (4 oz) milk chocolate, broken into small pieces
⅓ tablespoon cinnamon
1 pint ice cream
1 cup heavy whipping cream, lightly sweetened to taste and whipped
¼ cup chopped toasted walnuts
3 maraschino cherries

Prepare a gas or charcoal [...]