Preheat oven to 350 degrees. Put the cast iron skillet in the oven while it is preheating.
Mix 2 cup of Kodiak Cake mix with 2 cups of water.
Stir in 2 tbsp of brown sugar and 1 tbsp of cinnamon. Mix well.
Once oven is preheated, take out the cast iron skillet.
Melt 2 tbsp of butter into the skillet. Spread it around so it covers all of the surfaces.
Pour mix into the skillet.
Bake at 350 degrees for 5 minutes, then sprinkle with 1 tbsp brown sugar and 1 tsp of cinnamon.
Continue baking for another 10 minutes or until the top is light brown and the pancake is baked all the way through.
While the pancake is baking, make the icing. Mix the greek yogurt, vanilla, and powdered sugar together in a bowl. Put the icing in the fridge to get cool.
Take the skillet out of the oven.
Drizzle the icing all over the pancake skillet. Swirl if desired.
Cut into pieces and enjoy!