Mix flours, baking powder, sugar, and salt in bowl. Add milk and soft butter. Mix with fork to make a soft dough. Knead 10 times. Divide dough in half. Roll half of dough into rectangle 12" x 8". Cut lengthwise into eight 1-inch strips. Fold each strip in half lengthwise and pinch edges to seal. Twist each strip into a pretzel shape. Place seam-side down on non-stick cooking sprayed baking sheet. Repeat with remaining half of dough. Beat egg white in small bowl with fork. Brush pretzels with egg and sprinkle lightly with coarse salt. Bake at 400 degrees 16-20 minutes or until golden brown. Makes 16 large pretzels. Remove with wide pancake turner and place on rack to cool.