Jam and Margarine Koppepan (ジャムマーガリンコッペパン)

Koppepan looks almost too plain to be a recipe. A soft roll, a slit down the middle, jam on one wall, margarine on the other. That is the whole trick, and also the reason people get it wrong by trying to improve it.

The bread must be tender but not rich like a sweet bun. It needs enough strength to hold its spindle shape and enough softness to fold around the filling without cracking. Knead the dough well before the butter goes in, because gluten gives the roll its quiet backbone, and the fat comes after to soften the crumb. This is not difficult work. It's just bread that asks you to stop one step before showing off.

Use strawberry jam if you want the old lunchbox feeling, and use margarine without apology. Butter is a beautiful thing, but it changes this particular bread into something else. The mild, salty spread against bright jam is the taste of the dish. Honmono, in this case, is not grand. It is exact.

Serve it as oyatsu, the small afternoon bite, or wrap one for a simple breakfast with tea. Cut cleanly, fill neatly, and don't overstuff it. Leave it room. Even a bread from the convenience shelf has its own manners.