Dough: Combine hot water, milk, yeast, and sugar in a large mixing bowl or Bosch. Let sit for about 5 minutes or till bubbly.
Add remaining ingredients, adding just enough flour at the end to make a soft dough. Knead for 5 minutes. Cover and let rest for 5-10 minutes.
Divide dough in half and roll the first portion out into a 9x15" rectangle on a countertop that has been sprayed with non-stick spray. Spread with 1 tablespoon of the softened butter.
Combine the sugar and cinnamon and sprinkle half over the top. Starting at one of the short sides, roll the dough up tightly. Pinch the edge together to seal.
Tuck the ends in a bit and place seam side down in a greased 9x5" loaf pan.
Repeat for the remaining dough. Cover both loaves and let rise till doubled, about an hour.
Bake in a preheated 350° oven for about 30 minutes. Brush with butter while still hot. Let sit in pans for about 5 minutes, then invert onto cooling racks.
Notes
If you prefer, you can replace the whole wheat flour with white flour.