1Preheat oven to 375 degrees. Spray an 8 inch round cake pan with cooking spray.
2In large bowl, combine flour, sugar, baking soda, and salt. In small bowl, combine buttermilk apple sauce and butter.
3Add apple sauce mixture to flour mixture; stir until mixture forms a ball.
4Turn out dough onto well-floured surface; knead in raisins. If not adding raisins, knead 10 times. Pat dough into a 6" round.
5Place dough in prepared pan. Cut cross in top of dough, 1/4 inch deep, with tip of sharp knife. Brush top of dough with milk.
6Bake 35 minutes or until toothpick inserted in center comes out clean. Cool in pan 10 minutes. Invert onto wire rack; turn right side up. Cool completely before slicing.