I was looking for a Reese's cake to make for a friend's birthday. I found this recipe on the website: http://www.sixsistersstuff.com/2014/06/reeses-peanut-butter-poke-cake.html
This is definitely a cake I would make again.
1 chocolate cake mix, plus oil, water, and eggs as directed on package
1 jar (12 oz) hot fudge
1 (8oz) cream cheese
1 can (14 oz) sweetened condensed milk
1 cup creamy peanut butter
12 oz Cool Whip
Reese's peanut butter cups to crumble on top
Start by baking the chocolate cake. (I did mine in two 8 inch cake pans. It would probably work best in a 9x13 inch pan.)
When the cake is done baking, immediately poke holes in it with a fork.
Heat the hot fudge in the microwave. Pour 3/4 of the jar of hot fudge over the cakes. Let the fudge seep into the cake.
Meanwhile, whip the cream cheese and sweetened condensed milk together. Add the peanut butter. Whip that again.
Fold in half of the Cool Whip.
Spread the peanut butter mixture over the cooled cake.
Let that chill in the refrigerator for about 30 minutes.
Then top with the remaining Cool Whip. Crumble Reese's peanut butter cups on top and drizzle on the remaining hot fudge. Keep refrigerated.