Chocolate Chip Oreo Brownie Bars - Made this 10-30-12 for Halloween potluck at work. Called them "Graveyard" brownies; I stuck 1/2 an Oreo in each brownie & wrote "RIP" on them w/ a white frosting pen. Oh, & they were AMAZING. Note: I doubled the recipe for the 9x13 pan & had trouble b/c the brownie leaked over the top & into the bottom of my oven. Also I had to bake them about 45 min longer.