The Pop-Tart Challenge is a viral internet phenomenon centered around creating and consuming bizarre, often unappetizing food combinations involving the famous toaster pastry. While it gained significant traction on platforms like TikTok and Twitter, the trend often features users topping their Pop-Tarts with unexpected items like mustard, pickles, or sliced American cheese to spark outrage or curiosity. It serves as a commentary on the 'cursed food' subculture, where the shock value of a gross recipe drives engagement and debate. Today, the meme is used to roast questionable culinary choices or to invent the next viral and often disgusting snack pairing that triggers the internet.