Kochen; Sieden {n} [cook.] - boil
kochen - to be on the boil zu kochen aufhören - to go off the boil etw. kochen lassen - to keep sth. on the boil etw. köcheln / auf kleiner Flamme kochen lassen - to cook sth. at a slow boil etw. wallend kochen lassen - to cook sth. at a rapid boil die Sauce aufkochen lassen, zum Kochen bringen - bring the sauce to the boil [Br.] / a boil [Am.] wenn das Wasser zu kochen beginnt - when the kettle comes to the boil [Br.] / a boil [Am.]