Mix cream cheese and sour cream with mixer until smooth.
Add all other ingredients and stir well.
Cut top off bread loaf and hollow out the center.
Put mixture in the bread and put the top back on. (If you don't want to do the "bread thing" I have also put the ingredients in the crockpot on high till all cheese melts, stirring once or twice, then lowering the temp to low or warm settings to serve.)
Wrap in aluminum foil and bake for 1 hour at 350 degrees.