KFC Old-Fashioned Huckleberry Cake

1 egg, beaten
3 Tablespoons butter, softened
2/3 cup sugar
1 teaspoon vanilla or almond extract
2 teaspoons baking powder
1 1/2 cups cake flower
1/2 teaspoon salt
1/3 cup milk
1 1/2 cups berries (huckleberries or blueberries)

Preheat oven to 350ºF. Combine egg and butter. Gradually add
 sugar into egg mixture and beat until light. Add extract. In
 a separate bowl sift together baking powder, cake flour, salt.
 Add the flour to the egg mixture alternately with milk. Beat well.
 Fold in the berries and pour into an 8-inch cake pan. Bake about
 35-40 minutes or until done.