Dissolve 1 pkg (3oz) lime gelatin, in 1 cup boiling water.
Add 2 cups (1 pint) vanilla ice cream by spoonfuls; stir until melted.
Add 1/2 teaspoon peppermint extract and 1/4 cup chocolate chips.
Spoon into serving bowl. Chill until set, about 30 minutes.
Garnish with whipped cream and additional chips.