Not sure if this is the one you're talking about or not - I've never tasted the one to which you refer, but I did find these on the web that sound like they might be similar. I saw this particular recipe several times. At the bottom are three other links where I found it. Hope this is what you were looking for.
Keri C
* Exported from MasterCook *
Chi Chi's Sweet Corn Cake
Recipe By :
Serving Size : 8 Preparation Time :0:00
Categories : Vegetable
Amount Measure Ingredient -- Preparation Method
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1/2 cup butter or margarine -- softened
1/3 cup masa harina
1/4 cup water
1 10oz pkg frozen corn -- thawed
1/3 cup sugar
3 tbl yellow corn meal
2 tbl whipping cream
1/4 tsp baking powder
1/4 tsp salt
sliced chili peppers
chopped parsley
With an electric mixer, beat butter til fluffy. Gradually beat in masa harina. On low speed, beat in water. Place corn in bowl of food processor and pulse until chopped coursely. Stir in masa mixture. In a small bowl, stir together sugar, cornmeal,cream, baking powder, and salt. Stir into corn mixture. Spread in a greased 8" sq. baking pan. Cover with foil. Place in a larger pan and pour boiling water half way up the side of the smaller pan. Bake at 350 for 50 min., or til set. Remove smaller pan from water, uncover and let stand 15 min. Sprinkle with chilies and parsley, if desired.
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http://www.thatsmyhome.com/texmex/sides/chichi.htm
http://recipes.epicurean.com/recipe/353/chi-chi's-sweet-corn-cake.html
http://www.cajuncookingrecipes.com/closeclone/closeclone30.htm