In the bowl of a stand mixer with a paddle attachment, combine the water, oats, sugar, honey, butter, salt and cinnamon. Let it cool down and add the yeast. Let that sit for 5 minutes.
Mix the two flours in a bowl and then add it 1 cup at a time, mixing until it forms a dough. Let it knead for about 7 minutes or until dough stays together and is soft.
Grease a large bowl with melted butter or cooking spray and put the dough in it. Cover it with plastic wrap and let it rise for 1 hour.
Divide the dough in half and shape into two loaves. Place in greased bread loaf pans (8"x4" pans, more or less)
Spray cooking spray over the top and lightly cover with plastic wrap. Allow to rise for another hour, or until it is well over the top of the pan.
Preheat oven to 350F and bake for 35 minutes. Remove when a thermometer reads 190 degrees or it is toasty and golden brown!
Cool on a wire rack. Slice and store in plastic zip top bags.
