So, I prefer this recipe with white flour only, but it can be done substituting 1/2 wheat flour and increasing the buttermilk by 1/4 cup.
Again, I use a bread machine and I LOVE it! However, I NEVER let the machine cook my bread else I get something that's better suited for a dog because it's so tough and chewy.
So, the recipe is simple:
3 1/2 c white flour
1 1/4 c buttermilk
3/4 Tbsp bread machine/quick yeast
1 tsp salt
Dough setting on the bread machine. Come back in about an hour and a half, shape the dough into whatever (makes 1 standard loaf or you can make rolls, whatever). Allow to rise 1 more time, bake at 400* until top is golden. Cover when cooling to allow the top of the crust to soften again. Now enjoy a nice hearty, flavorful, fantastic and homemade loaf of bread :)