Sour Patch Kids CEREAL?!
Markiplier turns his camera on breakfast, and Sour Patch Kids’ cereal experiment doesn’t survive the taste test unscathed.
On July 22, 2019, Mark Fischbach — better known to his 24-million-plus subscribers as Markiplier — uploaded “Sour Patch Kids CEREAL?!,” a 12-minute, 49-second entry in his ongoing “Markiplier Reviews Stuff” series. The premise is simple: Post Consumer Brands actually shipped a real, shelf-stable cereal built around Sour Patch Kids candy, and Fischbach put it through his usual unscripted gauntlet — dry, then drowned in milk. What starts as a joke about breakfast-aisle overreach turns into a genuine, funny reaction video about whether sour candy belongs anywhere near a cereal bowl.
- Fischbach tests Post Consumer Brands’ official Sour Patch Kids cereal, which had launched in late 2018, both dry and with milk.
- The video runs 12 minutes and 49 seconds and was published July 22, 2019, as part of his “Markiplier Reviews Stuff” series.
- This upload kicked off a recurring bit with the brand, which later grew into follow-up taste tests of Sour Patch Kids ice cream and brand-sent promotional packages.
The Setup
“Markiplier Reviews Stuff” has built its audience on exactly this kind of premise — Fischbach confronting a genuinely strange grocery-store product with no script and no filter. Sour Patch Kids cereal is tailor-made for the format: the candy’s whole identity is built on the “sour, then sweet” tagline, and turning that into a spoon-and-bowl breakfast item is the kind of corporate swing that practically demands commentary. Post Consumer Brands kept the cereal’s kid-shaped candy pieces and bright, on-brand packaging, betting that nostalgia for the candy would carry the format switch.
The Dry Run
Fischbach starts, as he typically does in this series, by sampling the cereal straight out of the box before committing to milk. His reaction leans into disbelief that a candy this aggressively sour got repackaged as a “part of a balanced breakfast” item, and he spends a chunk of the video interrogating the actual smell and texture of the pieces before he’ll even consider dairy.
Milk, and the Moment of Truth
The real test — and the reason the video works — is what happens once the cereal hits milk. Sour candy coatings are notorious for reacting badly with dairy, and Fischbach spends the back half of the video checking whether the tartness curdles the milk or just makes it unpleasantly tangy. His candid, exaggerated reactions to that combination are the engine of the whole video.
How does it taste? Watch to find out.
That’s the entire pitch of the series in one line, and it’s why Fischbach’s audience keeps coming back for novelty-food content even when the product itself is objectively ridiculous. It’s the same instinct that fuels other oversized, over-the-top internet stunts — the kind of content you’ll find in videos like World’s Most Dangerous Escape Room! or World’s Largest Challenge! — where the appeal isn’t really the product, it’s watching someone’s real-time reaction to it.
Part of a Bigger Pattern
Candy-to-cereal crossovers weren’t new when Sour Patch Kids’ version hit shelves in late 2018 — Fruity Pebbles and Cocoa Puffs had already normalized the idea of candy flavors dressed up as breakfast. What made this one different, and worth a video, was the sour element specifically, since that’s the one flavor profile cereal companies had mostly avoided putting anywhere near milk. Fischbach’s video became the first entry in what turned into a running gag on his channel, with Sour Patch Kids sending him more products to react to down the line, including ice cream.
The cereal itself came and went as a shelf item, but the bit didn’t — Fischbach’s channel kept the Sour Patch Kids storyline going with the ice cream follow-up and the promotional gift box the brand mailed him afterward, turning a one-off taste test into a recurring inside joke between him and his subscribers.








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