Double recipe in parentheses.

1 basket blueberries
1/2 (1) c. butter
1 (2) c. sugar
2 (4) eggs
2 (4) c. flour
2 (4) tsp. baking powder
2/3 (1 1/3) c. milk
1/4 (1/2) tsp. salt
1 (2) tsp. vanilla

Cream butter, sugar, and eggs. Beat well. Mix flour, baking powder, and salt; sift twice. Add to creamed mixture. Add milk and vanilla; beat well, then gently add blueberries. Bake at 350 degrees for 40 to 50 minutes until golden brown. (Double Recipe makes 3 dozen.)