Preheat the oven to 350 degrees F. Lightly grease an 8x8 pan or line with parchment paper. Set aside.
Heat a nonstick skillet over medium heat and spray with cooking spray. Add the corn and a pinch of salt, then cook over medium heat until warmed through and sautéed.
In a large bowl, whisk together the flour, cornmeal, sugar, salt and baking powder. Add in the wet ingredients: milk, vinegar, and oil. Stir to combine, then fold in the corn.
Pour into the prepared baking pan and cook until done, about 25 minutes.
Notes
*I think this recipe works best with a fine cornmeal. I use oatmilk for this recipe when testing; I'd recommend that or almond milk.This cornbread is also great with a 4 ounce can of diced chiles folded in.