Preheat your oven to 400'F
Lightly grease a loaf pan with cooking spray
In a mixing bowl, combine the Jiffy cornbread mix, the egg, milk, melted butter, and sour cream
Stir until the batter is smooth and free of lumps
Pour the moist cornbread batter into the prepared loaf pan, spreading it evenly with a spatula
Bake the cornbread in the preheated oven for about 25-30 minutes, or until a toothpick insterted in the center comes out clean.
Once the cornbread is golden brown and fully cooked, remove it from the oven and allow it to cool in the loaf pan completely
Serve the moist cornbread warm, and for an extra touch of sweetness you can drizzle honey or maple syrup on top.