Preheat oven to 350 F. Combine chicken with cream of chicken soup and milk. Spread mixture out into a large greased baking dish. Sprinkle with shredded cheddar cheese.
In a medium bowl, whisk together flour, cornmeal, sugar, salt and baking powder. Whisk in egg, milk and vegetable oil until smooth.
Pour cornbread mixture evenly over the chicken cheese and bake for 40-45 minutes.