Pour milk into blender. Add eggs, cinnamon, vanilla, and 1 tablespoon sugar then place the lid on top. Blend on high speed until well mixed.
Add the flour and mix on low until just combined.
Sprinkle blueberries, ginger and the remaining 1/4 cup of the sugar in the bottom of prepared dish.
Bake 25 to 30 minutes or until top is lightly browned. Sprinkle with confectioners' sugar. Serve warm with whipped cream.