Please be sure to freeze your ice cream maker base for at least 24 hours prior to using.
Pour milk, heavy cream and sugar into a bowl, mix well until sugar is dissolved.
Add in peppermint extract and green food coloring, if using, and stir well until combined. Cover and chill 30 minutes or until temperature reaches 45⁰ F/7⁰ C.
Meanwhile, chop the semisweet chocolate.
Remove the bowl of the Ice Cream Maker from the freezer and attach the assembled clear lid to the bowl. Set the timer for 30 minutes. Once the paddle starts rotating, pour the mixture into the bowl. During the last minute of churning, pour the chopped chocolate through the shoot.
When the timer has ended, Remove the paddle from the bowl and serve immediately, or cover and let ice cream harden, if desired.