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What does “半熟” (hanjuku) mean in Japanese?

This egg toast recipe calls for cooking the egg until it’s 半熟 (hanjuku) — the white set but the yolk still soft and runny, the prized texture in ramen eggs and tamago-kake gohan alike. It’s a precise, everyday kitchen term for exactly one doneness level. But its usefulness doesn’t stop at the stove: Japanese speakers reach for the same word well outside the kitchen.

半熟 combines 半 (han, “half”) and 熟 (juku, “ripe” or “cooked through”), and it extends metaphorically to people and skills: 半熟の演技 means “half-baked acting,” and calling a new hire 半熟社員 signals they’re promising but not fully seasoned yet — a gentler stand-in for 未熟 (mijuku, “immature”). So ordering your eggs 半熟 at a restaurant uses the exact same word a manager might use, kindly, about a rookie who still has some cooking left to do.