Place the creamy peanut butter, milk chocolate chunks, coconut oil, butter, and Kosher salt in a small sauce pot on the stove.
Heat the mixture until it is hot, and pour into a large mixing bowl.
Add the rolled oats, and stir to combine the oats with peanut butter mixture.
Leave the outs to sit in the liquid mixture for five minutes.
After the mixture with the oats has rested for five minutes, add the peanuts and the chocolate-covered peanuts and allow the mixture to sit while you prepare the whipped cream.
For the whipped cream, combine the heavy cream with the white granulated sugar.
Whisk the heavy cream until soft peaks form.
Use a rubber spatula to carefully fold the whipped cream mixture into the peanut butter and oats mixture that you combined earlier.
*It is OK if the final mixture has some small streaks of whipped cream in it, the mixture does not need to be fully homogenous.
Place a piece of parchment paper on the bottom of a 9x13” casserole dish.
Carefully pour the mixture into the casserole dish, and even the top out with an offset spatula or rubber spatula so that the contents are spread out in an even layer.
Place in the freezer for 30 minutes, or until the mixture has hardened.
Remove the frozen block of bars from the casserole dish, and carefully peel off the bottom layer of parchment.
Cut the frozen block of peanut butter oatmeal bars into small rectangles using a heavy chef’s knife.
Eat immediately, and store any leftover no-bake chocolate peanut butter oatmeal bars in an airtight container in the freezer.