Should corn on the cob boil for several hours, or is an hour enough? For fresh sweet corn, both suggestions in the pictured question are far longer than needed. The useful measure is minutes.
Iowa State University's extension guide recommends boiling corn for five to six minutes. Start by removing the husk and silk, then rinse the ears. Bring water to a boil in a large pot before adding the corn. The source article also favors a brief cooking time to keep the kernels tender rather than overcooked.
Freshness matters before the pot goes on the stove. Look for bright green husks and plump kernels, and keep the corn refrigerated until you are ready to prepare it. Once cooked, lift the ears out carefully and serve them hot with the toppings you enjoy.