Worlds BEST Cinnamon Rolls

This recipe is from my mom.  They are the best cinnamon rolls I have ever tasted in my life.  The way the recipe is written is a little different because it's very old, so just read it through before you start.  It makes sense to me cause I learned with my mom the first time.

Mix on low speed until moist:

2 cups milk - microwave 2-3 min to warm
1/2 cup warm water
1/2 cup butter flavor Crisco or 1/4 cup butter and 1/4 cup shortening
1/2 cup sugar
1 1/2 tsp salt
1/2 tsp lemon extract
1 cup mashed potatoes (real or instant work fine)
2 eggs beaten
1 1/2 cups Better for Bread flour

Next:

Sprinkle yeast around bowl and continue adding flour until dough cleans the sides and bottom of the bowl.  Dough should be sticky.  Knead on low speed for 6 minutes.

2 1/4 tsp Instant yeast
3-4 cups flour (in Oregon I use close to 5 cups)

Let rise in greased bowl until double in bulk.  Punch down.  Let rest 10-15 min.  Divide into 2 parts.  Roll out to 8x12 rectangle to 1/4" - 1/2" thick.  Spread or brush with softened butter and sprinkle with mixture of brown sugar, cinnamon and nuts (optional).

3/4 cube butter
Mix:
1 1/4 cups brown sugar
1 Tbsp + 3/4 tsp cinnamon
1/2 cup nuts

Roll up from one long side to the other.  Seal.  Cut into 1" slices using dental floss or thread.  Place on large jelly roll pans lined with parchment paper.  Rise until double in size (30-45 min)

Bake: 350 degrees for 15-20 min. Cool slightly.  Frost.

Frosting:
4 cups powdered sugar
6 Tbsp butter
1 1/2 tsp vanilla
6 Tbsp cream or milk
I like to add a little cream cheese to this.  I'll pay attention to the amount next time but I really just throw some in.  Less than half a brick.

One recipe makes about 3 dozen rolls.  I've doubled it but it barely and I mean barely fits in my Bosch. They freeze great, just freeze them individually first and then put them in ziploc bags so the frosting doesn't come off.