In a mixing bowl, combine the sweetened condensed milk and peanut butter until smooth and well blended.
Spread the peanut butter mixture evenly over the chilled graham cracker crust.
Prepare the Topping:
In a microwave-safe bowl, heat the chocolate chips and heavy cream together in 30-second intervals, stirring each time, until melted and smooth.
Pour the chocolate mixture over the peanut butter layer, spreading it evenly with a spatula.
Chill and Serve:
Place the dish back in the refrigerator and chill for at least 2 hours, or until the chocolate topping is set.
Once set, remove from the refrigerator and let it sit at room temperature for a few minutes before cutting into bars.
Serve:
Cut into bars of desired size and enjoy these delicious Buster Bars!
These bars are a wonderful combination of crunchy biscuit base, creamy peanut butter filling, and rich chocolate topping, making them a perfect treat for any occasion. Enjoy!