Blueberry Cream Pie - cooking recipe

Ingredients

1 c. commerical sour cream
2 Tbsp. all-purpose flour
3/4 c. sugar
1 tsp. vanilla extract
3/4 tsp. salt
1 egg, beaten
2 1/2 c. fresh blueberries
1 unbaked 9-inch pastry shell
3 Tbsp. all-purpose flour
3 Tbsp. butter, softened
3 Tbsp. chopped black walnuts

Preparation

Combine first 6 ingredients; beat 5 minutes at medium speed of an electric mixer or until smooth.
Fold in blueberries.
Pour filling into pastry shell.
Bake at 400\u00b0 for 25 minutes.