You'll Need: 8x8 Pan Nonstick Foil-also known as the best creation ever! M & M Oreo Bars Ingredients M&M Oreo Bars 1/2 cup butter, melted 1 egg 1 cup light brown sugar, packed 1 tablespoon vanilla 1 cup all-purpose flour 18 Oreo Cookies, coarsely chopped 1/2 cup M&M's Instructions Preheat oven to 350F. Line 8-by-8