Root beer Float Pie

Root Beer Float Pie 

• 1 tub (8 ounces) frozen whipped topping (like Cool Whip), thawed
• 3/4 cup cold root beer 
• 1/2 cup milk
• Root Beer Extract to taste. 
• 1 package (4 serving size) instant vanilla pudding mix
• 1 graham cracker crust
• 6 - 8 Maraschino cherries

Combine the root beer, milk and pudding mix in a large bowl.
Mix with a whisk until it begins to thicken. Fold in half of the whipped topping and desired amount of root beer extract . Start with just a little of the extract and give it a taste. You can continue adding more until desired flavor is reached. Spread into the pie crust. Refrigerate for 5 minutes. Top with remaining whipped topping.
Slice the pie into 8 even slices (this makes it really easy to cut when it's frozen).Add a cherry on each slice.
Freeze 8 hours or overnight.