Preheat the oven to 375 degrees.
Mix together all of the ingredients except for the butter until smooth and creamy.
Place the butter into an oven safe skillet on the stove, and melt it over medium heat.
Once the butter is melted, remove the skillet from the heat, and pour the batter into it. Whisk the batter in with the butter until well combined.
Bake for 25-30 minutes until browned and cooked through