1) Heat oven to 350°F. Lightly spray 10-inch springform pan with cooking spray. Or line 9-inch square baking pan with foil, leaving about 2 inches of the foil overhanging sides of pan; lightly spray with cooking spray.
2) In large bowl, stir cookie mix, 2 tablespoons of the hot fudge topping, oil and egg until soft dough forms. Press dough in bottom and 1 inch up sides of pan. Bake 13 to 15 minutes or until top of crust is no longer shiny. Cool completely, about 1 hour.
3) Spread ice cream over cookie crust. Freeze 2 hours. Remove from freezer. Drizzle with caramel topping and remaining hot fudge topping; sprinkle with peanuts. Freeze at least 2 hours or until firm.
4) To serve, remove sides of springform pan or lift dessert using foil out of 9-inch pan. Let stand 10 minutes. Use hot wet knife to cut into wedges or squares. Store covered in freezer.