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 1 of 3 ADVERTISEMENT () Start Slideshow View this post on Instagram A post shared by Costco Sisters (@costcosisters) Share This Link Copy ← Use Arrow Keys → 1 Previous Next Start Slideshow CostcoFood ShoppingBrowniesDessertFood News