In a large mixing bowl, combine 1 cup of creamy peanut butter and 4 tablespoons of softened butter. Blend until creamy and well integrated, about 2-3 minutes.

Mix in 1 teaspoon of vanilla extract, continuing to blend at low speed for another minute.

Gradually sprinkle in 1 cup of powdered sugar while mixing on low speed until fully incorporated.

Fold in ¾ cup of graham cracker crumbs and ½ cup of crushed Butterfinger bars using a spatula until combined.

Scoop approximately 1 to 1½ tablespoons of the dough and roll into balls, placing them on a parchment-lined cookie sheet.

Chill the cookie sheet with the balls in the freezer for about 30 minutes.

Melt 8 ounces of chocolate bark or chocolate chips in a microwave-safe bowl at 50% power, stirring every 30 seconds.

Dip each chilled Butterfinger Ball into the melted chocolate, allowing excess to drip off.

Before the chocolate sets, decorate with additional crushed Butterfinger or festive sprinkles.

Allow the chocolate-coated balls to sit at room temperature or refrigerate to solidify for about 30 minutes.