Dorothy Lane Market is the Official Online Store for Killer Brownie®. Our Killer Brownie® Signature Flavor 4-cts are what started it all. Our Killer Brownie® started back in the 70's right here in our DLM Bakeries with the Original triple layered brownie with inclusions. From there we now offer 9 every day flavors and a host of seasonal favorites. These 4-ct Flavors ship in a beautiful gift box or upgrade to a gift tin!