Preheat oven to 350°. Spray an 8x8 dish with cooking spray.
If you have a helper like me, in a medium bowl, have him/her mix together the brownie mix, egg, water and oil.
Pour mix into your 8x8 dish and bake for 34-37 minutes.
Remove and allow to cool for about 2 hours.
Frost with chocolate frosting.
Add 1/2 of your Reeses peanut butter chips.
Drizzle with caramel and add the other 1/2 of your Reeses peanut butter chips.
Cut and serve.
Notes
ITEMS/INGREDIENTS USED IN RECIPE - If you are interested in any of the items I may have used (or are similar to the items I used) in making this recipe, I have listed all or some of them above within the post. NOTE: These links are affiliate links of which I receive a small commission from the sale of certain item. This does not affect your price, it remains the same.