In a bowl combine 1 cup creamy peanut butter with 1 cup butterscotch and place in skillet of water to melt. This makes the center layer of the peanut butter cups.
If making just chocolate peanut butter cups, combine 1 cup butterscotch and 1 cup milk chocolate with 3⁄4 cup crunchy peanut butter in a bowl and add to skillet to become creamy and smooth. This makes your bottom and top layer.
***If making white chocolate as well, divide the ingredients between 2 bowls: 1⁄2 cup milk chocolate, 1⁄4 + 1/8 cups crunchy peanut butter and 1⁄2 cup butterscotch in one bowl AND 1⁄2 cup white chocolate, 1⁄4 + 1/8 cups crunchy peanut butter and 1⁄2 cup butterscotch in another bowl.
In candy mold or liners add bottom layer of chocolate or white chocolate mixture. Place in refrigerator to firm.
Add butterscotch and creamy peanut butter mixture to the middle layer. Place in refrigerator to firm.
Top with chocolate or white chocolate layer and if adding sprinkles, do so before it becomes firm in the refrigerator.
Pop out of candy mold and cupcake liners. Store in refrigerator until time to serve.