30 cobs = about 21 c.

Husk, clean corn silks from cob with brush under running water. Cut corn from cobs and place in a turkey roaster.

1/2 c. sugar
1/8 c. salt
1 lb. butter
1 pt. half-and-half

Bake at 325 degrees for 1 hour. Stir every 15 minutes. Cool quickly by placing in several small pans and using a fan. Package and tie and freeze.