Cast Iron Giant Pancake Cake

I wanted to try to make a giant fluffy pancake, and I did! Super easy! 2 cups of premade pancake batter. I always use Krusteaz or Bisquick. 2 cups 2% milk. 3 eggs. 3 tablespoons sugar. 2 tablespoons vanilla. 2 tablespoons butter. Blend together. I actually used a blender, but a hand or stand mixer should do the trick. Not by hand. Pour in a cast iron skillet and bake at 425 for 15-20 minutes. I did the toothpick cake trick to double check. Mine was perfect at about 18 minutes. When it came out, I brushed to top with more butter!