These cookies are a delicious amalgamation of the Peanut Butter Oatmeal Chocolate Chip Cookies recipe from Brown Eyed Baker and an inspiration from Darla's no-bake "Cockroach Cookies" over at Bakingdom.
Why are they called "Apocalypse Cookies", you ask? Because if peanut butter, oats, Reese's Pieces®, pretzels, marshmallows, and cocoa powder all mashed into one cookie don't spell the End of Days for my figure, I don't know what does. If you need another reason, I also figure that if there was an apocalypse, you'd be smashing everything but the kitchen sink into anything you cooked, right? (And yes, cookies will totally still be a priority.)
Also, they went in the Zombie Apocalypse care package I'm sending my husband, so there's that. :)
If you want to make these dairy free, substitute margarine for the butter, soy or almond milk for the milk, and leave out the Reese's®. You could swap them for dairy free peanut butter chips for a similar flavor.