I got this from Girl Talk. Very easy and yummy.
1 cup of chocolate chips
2 tablespoons butter
2 cups rice krispies
1 quart (green) mint chip ice cream (I like Mayfield's ice cream) Make sure it is green mint chip ice cream
Melt chocolate chips and butter in microwave. Mix in rice krispies. Press into 9-inch pie pan and cool in refrigerator (be sure to press evenly otherwise it can be hard to cut the pie up later because the crust will be thick). Soften ice cream then add to chocolate crust. Top with chocolate syrup. Then freeze. To serve, thaw for 10-15 minutes.