In a mixing bowl, combine the softened cream cheese and peanut butter. Using an electric mixer, beat them together until smooth and creamy.
Add the instant pudding mix to the cream cheese and peanut butter mixture. Pour in the milk gradually as you mix until everything is well combined and starts to thicken.
Gently fold in the Cool Whip using a spatula, being careful not to deflate the mixture.
Stir in the halved Reeses Miniatures and Reeses Minis, along with mini chocolate chips for extra sweetness and crunch.
Serve immediately or chill in the refrigerator for a few hours before serving.