McDonald's · Fast Food
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Vanilla soft serve blended with berry flavoring and birthday cake cookie crumbles, this McDonald's promotional treat turns a muted purple and keeps the usual spoonable, semi-frozen texture you'd expect from the format. Compared with standard mix-ins like Oreo or M&M's, the cookie pieces lean more vanilla-sweet than chocolatey or nutty. Berry flavor gives the base a fruity note, while the crumbles add small, sandy bits throughout. It arrived as part of the Grimace Birthday promotion alongside the viral shake that took over social media in 2023.
