Preheat oven to 425 degrees. In a blender, combine milk, eggs, flour, cocoa powder, salt, vanilla, and granulated sugar. Blend until foamy, 1 minute. In a large cast-iron skillet, melt butter over medium. Pour batter into skillet and immediately transfer to oven. Bake until puffed and set, 20 minutes. Dust with confectioners' sugar and serve immediately.
A dutch baby is a pancake. It will rise and then fall. The consistency is that of a thicker crepe, not a fluffy buttermilk type of pancake. I love dutch babies.
I made this cake, followed every step, but did not come out very good. it was too moist and it all sunk down. It tasted okay, but looked unappealing and tasted not very light and fluffy and came out more like soggy brownies. Any tips to prevent this?