01 -
Combine starter, sugar, and warm milk in mixer bowl with paddle attachment.
02 -
Mix in melted butter, salt, and egg until combined.
03 -
Switch to dough hook, add flour gradually until dough becomes tacky but not sticky.
04 -
Continue kneading for 5 minutes at medium speed.
05 -
Let dough rise until increased by 50%, about 3-7 hours.
06 -
Roll dough to 16x12 inches, spread with butter and cinnamon-sugar mixture.
07 -
Roll up, cut into 9 pieces, place in greased dish.
08 -
Let rise 2-4 hours until puffy.
09 -
Pour cream over rolls, bake at 350°F for 30-35 minutes.
10 -
Mix butter and cream cheese, add sugar and cream until smooth.
11 -
Spread frosting on warm rolls.