In a medium-size bowl, blend the lactic cheese and sour cream with a hand blender until smooth.
Slowly add the dressing, mixing it in well after you add each little bit. Taste it, and add more dressing if it seems too bland, more sour cream if it is overpowering. If it is too thin, add more lactic cheese and blend it well.
Serve chilled with potato chips or cut veggies. Will keep in the refrigerator for 1 to 2 weeks.