Cinnamon Sugar Dutch Baby

Preheat oven to 450 F.

Place one tablespoon butter in a 9-12 inch cast iron skillet or 9 inch pie plate. Place in the oven for 5 minutes.

Combine the sugar and cinnamon in a small bowl. Set the bowl aside.

Put the flour, milk, eggs and 1 1/2 tablespoons of remaining cold butter in a blender. Blend until well blended. Scrape down the sides of the blender and blend for about 30 seconds more.

Remove the skillet or pan from the oven and swirl the butter all around. Sprinkle with 1/3 of the cinnamon sugar mixture and then pour the batter into the skillet. Place in the oven at 450 F for 20 minutes. DO NOT OPEN the oven during this first 20 minutes! After 20 minutes turn the oven down to 350 F and bake for another 15-20 minutes until the edges begin to brown.

Remove from oven and let it cool for 3-5 minutes. Brush or drizzle with the melted butter, then cover in more cinnamon sugar. Serve immediately.