Blueberry Coffee Cake - cooking recipe

Ingredients

1 1/2 c. flour
1/2 c. sugar
1/2 c. butter
1 1/2 tsp. baking powder
1 egg
1 tsp. vanilla
2 c. sour cream
2 egg yolks
1/2 c. sugar
1 tsp. vanilla

Preparation

Mix first 6 ingredients; press into 10-inch spring-form pan. Sprinkle 1 quart of blueberries over mixture.
Combine and pour the remaining ingredients over blueberries.
Bake at 350\u00b0 for 1 hour.