Place an empty 10-inch cast iron skillet in the oven to heat the skillet.
Combine eggs, flour, whole milk, sugar, and vanilla in a blender and blend on low until smooth.
Once the oven is hot, carefully remove the cast iron skillet from the oven and add butter Swirl the butter around until melted and the skillet is completely covered in butter.
Pour batter into the skillet and swirl again to distribute the batter evenly.
Return the skillet to the oven and bake for 20 minutes until golden brown and the pancake is puffed.
Remove the Dutch baby from the oven, and top with whipped cream, strawberries, and maple syrup.
Dust powdered sugar and garnish with mint for a finishing touch.