1/2teaspooncinnamon in batterplus more sprinkled on top
Preheat oven to 425 degrees. In a medium cast-iron or ovenproof nonstick skillet, add 2 tablespoons butter and stick it in oven as it warms up.
In a blender, combine eggs, milk, flour, salt, vanilla, and 1/4 cup sugar. Blend until foamy, about 1 minute. Pull skillet from oven--be careful, that handle is hot! Pour batter into skillet and bake for about 19 to 20 minutes. The pancake should be puffed and lightly browned.
Slice into wedges--it will deflate and look a lot less pretty, but it's still delicious. Serve with butter and any other desired toppings (maple syrup, dulce de leche, powdered sugar, etc).
Serves one hungry person, or along with sides can feed several people.