In a large bowl using a whisk mix together the whole wheat flour,  all-purpose flour, oats, salt, and baking powder.  In a smaller bowl whisk together the buttermilk, egg, oil and honey.

Combine the two bowls and mix well with spoon. Turn out onto a wheat floured board and knead, adding flour until you have a dough.

Spray a 9 x 5 bread pan with cooking spray and add dough.  Bake in preheated 350 degree oven for 40 - 45 minutes.

Remove from pan and slice and enjoy.  Makes one loaf.