



ONN COFFEE
Costa Mesa
ONN Coffee is a bright, minimalist Korean-style cafe in Costa Mesa known for its abundant natural light and modern aesthetic. The menu specializes in freshly baked Japanese- and Korean-style salt breads—offered in sweet and savory flavors like mocha crust, fresh cream, egg salad, and ham and cheese—paired with drinks made using Stereoscope beans. Standouts include intensely rich hand-whisked matcha creations, strawberry matcha, and signature cream drinks like the Coconut Cloud Matcha and Cloud Cold Brew.
Commenters share overwhelming enthusiasm for the cafe, frequently praising the vibrant green look of the matcha and declaring a strong craving for the fresh salt breads. Viewers consistently rave about the cute and vibey aesthetic, eagerly adding it to their must-try lists and tagging friends to plan outings.
- Order the signature double matcha, strawberry matcha, or Coconut Cloud Matcha for deep green flavor.
- Sample the freshly baked salt breads in flavors like mocha crust, fresh cream, egg salad, or ham and cheese.
- Try the Cloud Cold Brew or Onn Cream Latte if you prefer specialty coffee over tea.
- Expect limited, casual seating primarily consisting of a communal table, benches, and low stone blocks.
Summaries are created based on reviews, notes, and social media posts.
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