1 1/2 c. all-purpose flour
1/2 c. sugar
1/2 c. butter
1 egg
1 tsp. vanilla
1 qt. blueberries
2 c. sour cream
2 egg yolks
1/2 c. sugar
1 tsp. vanilla

Set oven to 350°F. Combine first 6 ingredients and mix well. Turn into prepared pan. Sprinkle evenly with berries. Combine the rest and spread evenly.

Bake 1 hour or until custard edges is lightly brown.