Popover Pancake Baked in the Oven

Blend together in a jar or tall-sided bowl

(I use a hand blender in a tall mason jar)

4 eggs until frothy

Then add

1 cup milk

1 cup all-purpose flour

1 tablespoon sugar

1/4 teaspoon pure vanilla extract

1/8 teaspoon cinnamon

1/8 teaspoon grated nutmeg

1/8 teaspoon cardamon

or whatever bits of flavor you want

Put a cast-iron skillet in the oven

At 425F

Put 1/3 cup butter in the pan while the oven is heating

Pour the batter into the pan in the oven, slowly, over the melted butter

Bake 20 minutes or until golden brown and puffy