There's a lot of preparation involved, but it's worth it. The recipe is for two 1 lb. loaves since there's so much preparation involved it makes sense to make an extra loaf and freeze it. You need to start preparing a day before baking!
Soaker
4.25 oz. oats, coarsely ground
6.0 oz. water @ 70°F
Use regular (not instant or quick) oats. I ground them for about 30 seconds in the food processor until coarsely ground. Add the water in a small bowl, cover with plastic wrap and let sit at room temperature until the next day.
Poolish
6.75 oz. whole wheat flour
0.028 oz. instant yeast
6.0 oz. water @ 70°F
Mix together the yeast, water, and whole wheat flour until a paste forms and all of the flour is hydrated, but not longer. Cover with plastic wrap and let sit at room temperature for 2 to 4 hours. Then put into the refrigerator overnight.
Dough
6.0 oz. unbleached bread flour
3.0 oz. whole wheat flour
0.33 oz. salt
0.11 oz. instant yeast
1.5 oz. honey
0.5 oz. vegetable oil
1 egg lightly beaten
Remove the poolish from the refrigerator 1 hour before preparing the dough.
In the mixer bowl combine the flour, salt, and yeast. Add the poolish, soaker, honey, oil, and egg. Mix at low speed with the paddle attachment for 1 minute or until dough forms. Adjust consistency adding more water or flour.
Switch the mixer to the the dough hook and knead for 8 to 10 minutes. Form the dough into a ball.
Lightly oil a bowl and a ball of dough to the bowl and roll to coat the dough lightly with oil. Cover with plastic wrap and let rest for 2 hours until it doubles in size.
Punch down the dough and divide into 2 1-pound balls of dough. You could just divide the dough in half, though I made two 1-pound loaves and two 1.7 oz. dinner rolls, instead.
Lightly grease two loaf pans and place the dough balls into the pans. Spritz with oil, loosely cover with plastic wrap, and let proof for 90 minutes at room temperature.
Remove from the loaf pans and cool on a rack for 1 to 2 hours before slicing.