boil the corn cobs
in salted water for 10
minutes and it’s done

source, 4 servings
3 corn cobs + 4 c water + 1 t salt, boiled 10 minutes; kernels from 3 ears corn, 3 tomatoes, cut up; 2 leeks, cut up; kosher salt & pepper, 1/2 c white wine, 2 T butter, 2 T olive oil, 1.5 c pearled farro, 3/4 c grated parm, zest & juice of 1 lemon, basil
heat leeks, oil, butter, salt & pepper, cook 5 minutes; add farro, cook 1 minute, add wine, boil most off, ladle in hot stock over 15 minutes, stirring, add water if needed; add tomatoes, corn, cook 15 minutes or until farro is done, add zest & juice, parm; remove from heat, add basil, top with parm & red pepper flakes