1 c. butter, softened
2 c. sugar
4 eggs
1 tsp. vanilla
3 c. all-purpose flour (if using self-rising flour, omit salt and baking powder)
1/2 tsp. salt
1 tsp. baking powder
2 c. fresh or frozen blueberries

Cream butter and sugar. Add eggs, one at a time, and beat until light and fluffy. Add vanilla. Sift together 2 cups of the flour, salt, and baking powder. Add sifted ingredients to creamed mixture and beat well. Dredge berries in remaining 1 cup flour. Fold berry mixture gently into creamed mixture. Pour into 10 inch tube pan which has been buttered and coated with granulated sugar. Bake in preheated 325 degree oven for 1 hour 15 minutes.