Butterscotch Heaven Pie

Ingredients:

1 1/2 cups graham cracker crumbs

1/3 cup granulated sugar

6 tablespoons unsalted butter, melted

1 (5.1-ounce) package butterscotch instant pudding mix

2 cups cold milk

1 (8-ounce) container whipped topping, thawed and divided

1/2 cup butterscotch chips or toffee bits, for topping