Spray 9x13" baking pan with non-stick cooking spray. Set aside.
In a large bowl, cream butter and sugar until light and fluffy.
Add eggs in one at a time, beating well after adding each one.
Beat in sour cream.
Add in muffin mix and milk, mix well.
Fold in the corn.
Pour mixture into prepared 9x13" pan. Bake uncovered for 40-45 minutes or until set and lightly brown.
Notes
This recipe is not supposed to be the texture of cornbread, but more of a bread pudding. The middle may not be all the way set up, but it will continue to “set” after it’s done cooking.
If it’s too sweet for you, you can leave out the sugar.
Cornbread Mix: I love when I can make my whole meal from scratch. Sometimes it doesn’t happen, some weeks are better than others, but that's okay! But now with Brend Did’s Copycake Jiffy Cornbread Mix you can make this whole recipe from scratch! Plus, it’s always a good recipe to have on hand if you don’t have a box of Jiffy mix in the pantry.
Tex-Mex Modification: If you want to make it a Tex-Mex recipe, it is super simple. All you have to do is add a 4 ounce can of diced green chilies or diced jalapeños and 1 cup of shredded Mexican cheese to the batter. Then, just bake it like you would the original recipe and you have yourself another version of this super delicious corn pudding casserole recipe.