Jiffy´s Corn Casserole

This has become my favorite corn casserole. The only reason not to make it is that sometimes I cannot get my hands on a Jiffy cornbread mix here in Spain!

Ingredients:
1 can whole kernel corn, drained
1 can creamed corn
2 eggs, beaten
1 box Jiffy corn muffin mix
1 stick butter, melted (or 1/2 c. oil)
1 c. sour cream
1/4 - 1/2 tsp. garlic powder (opt.)
Shredded cheese (opt.)

Mix all ingredients except cheese. Sprinkle shredded cheese on top, if desired. Bake in casserole dish or 9"x13" baking dish for 30 to 45 minutes or until fully cooked in center.