For the mint chocolate chip ice cream, put the condensed milk, heavy cream, chocolate chips, and peppermint syrup into a blender or food processor and blend until combined. Pour the mixture onto a baking sheet and drizzle chocolate syrup in a loose diagonal zig-zag pattern on top. Transfer the baking sheet to the freezer and freeze for at least 4 hours.
Once the ice cream has chilled, remove it from the freezer, divide it into 3 even sections, and use a metal spatula to roll it up into tight ice cream rolls.
Transfer the ice cream rolls to a cup and place them upright. Garnish the mint chocolate chip ice cream rolls with chocolate syrup and fresh mint.