Biscotti with flour

4 cups all-purpose flour 1 cup sugar 1 tablespoon baking powder 1 dash salt 1/2 lb unsalted butter , Softened 2 large eggs 1 teaspoon vanilla extract 1[...]

1/2 cup butter , softened 3/4 cup sugar 3 eggs 3 cups unbleached all-purpose flour 2 teaspoons anise extract or 2 teaspoons sambuca liqueur 3 teaspoons baking[...]