Banana Cream Pie

1 cup cold milk
1 package (3.4 ounces) instant vanilla pudding mix
1/2 teaspoon vanilla extract
1 carton (12 ounces) frozen whipped topping, thawed, divided
1 graham cracker crust (9 inches)
2 medium firm bananas, sliced
Additional banana slices, optional

In a large mixing bowl, beat the milk and pudding mix on low speed for 2 minutes; beat in vanilla. Fold in 3 cups whipped topping.

Pour 1-1/3 cups of the pudding mixture into pie crust. Layer with banana slices and remaining pudding mixture. Top with remaining whipped topping. Garnish with additional banana slices if desired. Refrigerate until serving. Makes 8 servings.