Cinnamon pull-apart bread

(it was mostly gone when I took this picture, because who can resist?)

Cinnamon bread is my #1 favorite quick late-night snack. This presentation makes it "fancy" enough to serve to company. I basically followed the instructions here, but changed around the amounts. This is  my version:

Ingredients:
1 unsliced round loaf sourdough bread

1/2 cup margarine, softened (I just eyeballed it, actually and surely used a lot less)

2 Tbsp + 2 tsp sugar
2 tsp cinnamon

Optional:
1 cup powdered sugar
1-2 Tbsp soy milk

Directions:
Preheat oven to 350 degrees.
Cut the bread lengthwise into 1/2" slices, without cutting through the bottom crust. Spread vanilla honey butter in between slices.  Rotate the bread 90 degrees and slice the bread again into 1/2" pieces, without cutting through the bottom crust. Spread more vanilla honey butter in between new cuts. This doesn't need to be perfect - just make sure there is lots of butter in between all the cuts. Combine sugar and cinnamon. Generously sprinkle in between all cuts.

Wrap in foil; place on a baking sheet. Bake at 350 degrees for 25-30 minutes, until bread is warm.  Unwrap cinnamon bread and place on serving platter.  Combine powdered sugar and milk - adding milk until you get the consistency desired.  Drizzle icing over bread and serve immediately.