Step 1

Peel and cook until tender enough potatoes to make 1 cup mashed potatoes

Step 2

Soak yeast in 2/3 cup warm water.

Step 3

To scalded milk, add sugar, salt and 1/2 cup butter, stirring until sugar is dissolved. Cool until lukewarm

Step 4

Add the mashed potatoes, yeast and eggs and beat until smooth

Step 5

Add flour and knead 10 minutes using more flour as dough becomes sticky

Step 6

Place in a greased bowl (spray bowl and dough lightly with cooking spray).  Place in a warm (80F) and let rise about 1-1/4 hours or until doubled in bulk

Step 7

Roll into 3 cakes 11 inches by 15 inches and put each on a lightly greased cookie sheet

Step 8

Brush tops with melted butter or shortening. Cover and let rise to 3/4 inch thickness

Step 9

Sprinkle tops with light brown sugar

Step 10

Punch dough with thumb to make deep (but not through) indentations in dough one inch apart across entire top. Place a 1/4 inch square cube of butter in each hole (use more butter if you have more dents than cubes)

Step 11

Lightly drizzle some melted butter over top. Sprinkle with cinnamon

Step 12

Bake at 350F for 20 to 25 minutes