Can use a stand mixer or large bowl. Add yeast to large bowl or mixer bowl. Add warm water and let sit for 5 minutes.
Add all ingredients except flour and salt and mix until smooth.
Gradually add the flour and salt, and mix until just combined.
Turn dough out onto floured surface and knead gently until dough is soft and incorporated. Place dough in a greased bowl, cover with a towel or plastic wrap, and let rise until doubled, about an hour.
Once dough has doubled, turn out onto a floured counter/surface.
Punch down and knead into ball.
Cut ball in half. Set aside one half. Each half will be a loaf.
Roll out first half with a rolling pin, into a large rectangular shape (about 12x18")
Spread 3/4 c. of the nutella evenly over the dough.
In a separate bowl, mix the 1 c. of brown sugar and 1 tsp. of cinnamon. Use your hands to sprinkle half of this mixture over the first half of dough.
Roll up the dough tightly, into a long vertical log. If it's too loose, it will be harder to cut later.
Once rolled, use a sharp serrated knife to cut the log lengthwise down the middle.
Make sure you cut all the way through. The dough can be sticky.
Carefully take one side of dough and lift it over the other.
Continue this back and forth until the entire log is twisted up.
Once loaf is twisted, line 2 bread loaf pans with parchment paper, and then coat well with cooking spray.
Set the first twisted loaf carefully into the first loaf pan. It doesn't have to look perfect. It looks so pretty any way you do it.
Repeat the rolling, cutting, and twisting process with the second ball of dough.
Place into the second loaf pan. Spray both loaves with cooking spray to keep from getting dry, then cover with a towel and set aside to rise for 45 minutes - 1 hour.
Preheat the oven to 350 F degrees.