In a medium bowl, mix together cookies, melted butter and extract of your choice.
Use mixed to press in to a buttered pie pan to make a crust.
Preheat oven to 350°F
Bake crust for 7 minutes
Let cool, placing in freezer for approximately 20 minutes.
Remove from freezer and spread chocolate ice cream over bottom of crust.
Sprinkle peanut butter chips evenly on top of the ice cream.
Freeze for 20 minutes or until firm.
Remove from freezer and spread vanilla ice cream over top.
Sprinkle chopped Heath bars on top.
Store in freezer.
Serve with Hot Fudge Sauce.
**HOT FUDGE SAUCE**
Melt the chocolate chips in a double boiler
Add whipping cream and corn starch
Mix together
Server on top of pie.