Place butter into pan and put into oven. Preheat oven to 425 degrees F with the pan in the oven. Add in the blueberries the last few minutes with the butter to allow blueberries to get warm. Remove from oven when butter is melted, hot and sizzling.
In a blender, combine flour, eggs, milk, baking soda, vanilla and lemon zest.
Blend until smooth
Remove hot pan from oven and pour in batter. Pan must be hot!
Return to oven and bake for 20 minutes or until puffed up and golden brown around the edges.
Garnish with powdered sugar and lemon juice.
Notes
Be sure your pan is hot, do not pour the batter into a cold pan. It is the steam from the heat that causes the pancake to puff up.
This Lemon Blueberry Dutch Baby is best served hot out of the oven. It will begin to deflate as it cools.