Do I need baking powder/baking soda for my flourless corn bread? So I completely forgot to add the flour into this corn bread recipe:

1 cup all-purpose flour
1 cup cornmeal
1/4 cup white sugar
1/2 teaspoon baking powder
1/2 teaspoon baking soda
1/2 teaspoon salt
1 egg, lightly beaten
1 cup sour cream
1/3 cup milk
1/4 cup butter, melted

Fold wet ingredients into dry until just moistened,
bake in an 8x8 pan at 400F for 20-25 minutes


Everyone liked it and wants me to make it exactly the same way going forward.

¯\_(ツ)_/¯

My questions is: Do I still need the baking powder and baking soda?
I assume from the ingredients you didn't end up making a corn flatbread. The raising agents will give some rise even without gluten from the flour to form a structure, and the egg will help bind the cornmeal into its raised shape. But its probably rather crumbly (the similar cornbread I make is quite crumbly even with the flour). 

One important point though: if they (and you) liked what you made before, I suggest you don't change it.