Heat the oven to 180 C. Make only the bottom of the pie with a circle of paper. Oil finely chop and spread on paper pieces. Beat separately the whites. Set aside. Beat the egg yolks with sugar and vanilla. Sift the flour. Add alternately to the batter in 1/3 flour, then the whites. So 3 times, finish proteins. Pour on the bottom of the blueberries, pour the batter. Bake for about 40 minutes to dry splinter (in my oven 50 minutes) Flip on a serving dish, cool. Just before serving sprinkle the top of the sah. powder.