Fairly recently, while searching for recipes, I came across a recipe for cookies and cream rice krispie treats. I copied it down but can tell you that it was nowhere near the top of my "things I want to bake really soon" list. That changed, however, when I took a bite of that delicious rice krispie treat and realized that (although I really don't need them), I'd like more rice krispie treats in my life.
Consider that a done deal:
6 cups rice krispies cereal
20 regular Oreos, crushed (I used double stuffed Oreos simply because I had them here for another project)
5 cups marshmallows
3 Tbsp butter
(I halved the recipe and used a smaller dish. I know I said I'd like more rice krispie treats in my life, but just not that many)
Directions:
1. Spray a 9 x 13" baking tray and a spatula with non-stick spray and set aside
2. Put the rice krispies and crushed Oreos in a bowl, and mix
3. Place the butter and marshmallows in a large microwave safe bowl. THEY WILL EXPAND A LOT, SO MAKE SURE YOUR BOWL IS BIG ENOUGH. Microwave them for about 3 minutes, until marshmallows are mostly melted and very puffy.
4. Remove from the oven carefullt and stir to fully combine the butter and marshmallows, making sure that the marshmallows are fully melted.
5. Pout the marshmallow mixture over the cereal/Oreo mixture and mix with the prepared spatula, QUICKLY.
6. Use the spatula to press the mixture into the dish and flatten it as needed.
7. Allow the mixture to cool before cutting into squares.
Enjoy.
The link above gives you storage directions, although I highly suspect that they'll be gone before you have to worry about storing them...