Peanut Butter Butterfinger Cheesecake

whole Oreos (Double Stuf or regular)1

unsalted butter, melted

full-fat cream cheese, softened to room temperature

granulated sugar

full-fat sour cream (or full-fat yogurt), at room temperature

creamy peanut butter2

vanilla extract

large eggs, at room temperature

fun-size or 5 regular size Butterfinger candy bars, chopped

optional: 1/4 cup melted peanut butter for drizzling