Combine yeast, 1 cup bread flour, and other dry ingredients, except whole wheat flour. Heat water and oil to 120º to 130ºF.
Hand-Held Mixer Method Combine dry mixture and liquid ingredients in mixing bowl on low speed. Beat 4 minutes on medium speed. By hand, stir in whole wheat flour and enough remaining bread flour to make a firm dough. Knead on floured surface 5 to 7 minutes or until smooth and elastic. Use additional bread flour if necessary.
Stand Mixer Method Combine dry mixture and liquid ingredients in mixing bowl with paddle or beaters for 4 minutes on medium speed. Using dough hook(s), gradually add whole wheat flour and enough remaining bread flour to make a firm dough. Use additional bread flour if necessary. Knead 5 to 7 minutes until smooth and elastic.