Pound Cake with crumbs

1 1/4 cups unsalted butter , plus 1 tablespoon unsalted butter 2 1/2 cups cake flour (or 2 1/3 cups all-purpose flour) 3 tablespoons cake flour 1 1/2[...]

6 cups sifted cake flour (not self-rising, plus more for pans) 1 1/2 teaspoons salt 2 1/4 tablespoons baking powder 1 lb unsalted butter , plus 4 tablespoons[...]

6 cups sifted cake flour (not self-rising, plus more for pans) 1 1/2 teaspoons salt 2 1/4 tablespoons baking powder 1 lb unsalted butter , plus 4 tablespoons[...]

1 1/4 cups unsalted butter , plus 1 tablespoon unsalted butter 2 1/2 cups cake flour (or 2 1/3 cups all-purpose flour) 3 tablespoons cake flour 1 1/2[...]