Backyard cooks looking to upgrade their outdoor cooking setup have a reason to shop now: select Blackstone griddles are on sale for under $100 at Walmart as part of the retailer’s end-of-summer deals. The markdowns offer a chance to pick up one of the most popular names in outdoor griddles for less before summer grilling season comes to an end. Blackstone griddles have become a backyard favorite for cooking everything from burgers and hot dogs to pancakes, bacon, eggs and stir-fry. With select options priced under $100, shoppers can potentially get into outdoor griddle cooking without spending several hundred dollars on a larger setup. Blackstone Griddles on Sale at WalmartShop the Blackstone sale at Walmart.