Combine; Sour Cream, Sugar, Butter, Salt, and Water in glass bowl.
Microwave glass bowl combination till warm, hot about 1 Minutes.
Beat egg into warm mixture.
In a separate bowl, add flour and yeast.
Combine both bowls and mix by hand.
Leave in bowl, cover with light towel for 30 minutes.
The dough should rise about double its original size.
You can put the bowl in a warm oven about 200 degrees so it rises faster.