Popsugar Living Costco Costco Is Selling a Massive Fudge Brownie For $13 Costco Is Selling a Nearly 4-Pound Decadent Fudge Brownie, and I'm Ready to Inhale It 23 January 2021 by Karenna Meredith View On One Page Photo 3 of 3 ADVERTISEMENT () Start Slideshow View this post on Instagram A post shared by Costco Buys (@costcobuys) Share This Link Copy ← Use Arrow Keys → 3 Previous Next Start Slideshow CostcoFood ShoppingBrowniesDessertFood News