Scalloped Corn Casserole

4 cans cream corn
2 cans drained kernel corn
2 cups milk
2 1/2 rows of Ritz type cracker crush
with hands, not too finely
1 small onion chopped fine and cooked
lightly in microwave to soften
3 heaping tab. brown sugar
salt and crack pepper to taste,
I use very little salt, lots of crack pepper
1 stick butter to dot top of casserole

Mix all ingredients in very large casserole dish. Dot top of casserole with butter. Bake
uncovered for one hour till thickened and lightly brown. Great with ham or turkey.....