Preheat oven to 350°. Cut kernels from cobs into a large bowl (about 6 cups). Scrape milk and remaining pulp from cobs; discard cobs.
Combine sugar and next 3 ingredients. Whisk together eggs, whipping cream, and butter in a large bowl. Gradually add sugar mixture to egg mixture, whisking until smooth; stir in corn. Pour mixture into a lightly greased 13- x 9-inch baking dish.
Bake at 350° for 40 to 45 minutes or until set. Let stand 5 minutes.