Step 1

Preheat oven to 450 degrees F.

Step 2

Place butter in a large round pan and put it in the oven as it heats.

Step 3

Meanwhile, crack 6 eggs into a blender and beat until they double in size, about 2 minutes.

Step 4

Add the milk, vanilla, cinnamon and brown sugar and pulse a few times.

Step 5

Add the flour and mix for 1 minute.

Step 6

Retrieve the HOT pan from the oven and pour the ENTIRE blender batter into it, carefully.

Step 7

Quickly return the pan to the oven and cook for 22 minutes. (This is the perfect amount of time in my oven; yours may require a couple less or more.)