Sour Cream Twist

This is a family tradition...

1/4 cup warm water
1 pkg yeast
Stir in 3/4 cup sour cream (lukewarm)
3 T. sugar
1/8 t. baking soda
1 t. salt
1 large egg
2 T. soft butter
3 cups flour

Turn dough onto lightly floured board, knead until smooth, roll into a oblong shape, spread with soft butter, sprinkle with mixture of brown sugar and cinnamon. Fold dough in half (press edges together) and cut into 1 inch wide strips. Hold strips at both ends and twist in opposite directions and place on greased baking sheet. Cover and let rise until double. Preheat oven to 375 degrees. Bake until light brown, 12-15 minutes.
While warm, frost with icing made from the remaining sour cream and powdered sugar (add powdered sugar to sour cream until right consistency)