These should be made with a warning, because they are fattening, unhealthy, so rich & soooo delicious! A lady in our ward brought us a plate of them & I had to get the recipe! Hers were so much prettier than mine (all of her layers were smooth & even), but I guess that comes with practice!
1 box Betty Crocker Original Supreme brownie mix (this is the kind I used, but I think any boxed chewy brownie mix would work just fine).
water, vegetable oil and eggs called for on brownie mix
1/2 cup butter (yes it says a half cup of butter just for the filling)
1/2 cup creammy peanut butter
2 cups powdered sugar
2 teaspoons milk
1/4 cup semisweet chocolate chips (I used milk chocolate chips because we are not semisweet at our house. Whatever floats your boat!)
1/4 cup butter (why yes that does say another one-fourth a cup butter just for the topping! Go big or go home!)
Heat oven to 350 degrees. Grease bottom only of 13x9-inch pan with cooking spray or shortening. (I lined my pan with aluminum foil & sprayed the bottom of it. It made it easier at the end to cut the brownies because I just lifted them right out of the pan and I didn't have to wash the pan!)
In medium bowl, stir brownie mix, pouch of chocolate syrup, water, oil and eggs until well blended. Spread in pan. Bake 28 to 30 minutes or until toothpick inserted 2 inches from side of pan comes out almost clean. (Or just follow the directions on the back of the box which pretty much said the same thing.) Cool completely, about 1 hour.
In medium bowl, beat filling ingredients with electric mixer on medium speed until smooth. Spread mixture evenly over brownie base.
In small microwavable bowl, microwave chocolate chips and butter uncovered on high for 30 to 45 seconds; stir until smooth. Spread over filling. Refrigerate about 30 minutes or until set. Cut into small squares. The original recipe says to cover & store in refrigerator, but I like mine softer so I take a couple out of the fridge to warm up before I devour them.
I can only have one of them at a time (with a big glass of milk) because they are so sweet. This is definitely a treat to be shared with your neighbors!