To a 4 quart or larger slow cooker, add bacon, potatoes, onion and chicken stock and stir to combine. Cover and cook on LOW for 6-8 hours, or HIGH for 3-4 hours, until potatoes are very tender. Combine evaporated milk and cornstarch, whisking to combine until no lumps remain.
Blend leek mixture, 1 cup chicken stock, bacon, cornstarch, salt, and pepper in a food processor until smooth. Pour back into the pot. Blend half of the turnips and 1 cup chicken stock in the food processor until smooth; pour into the pot. Repeat with remaining turnips and 1 cup chicken stock.
Yield 5 servings. In a large saucepan, combine the potatoes, onion, celery, broth and pepper. Bring to a boil. Reduce heat; cover and simmer until vegetables are tender, 15-18 minutes. , Combine cornstarch and 1/4 cup milk until smooth; stir into potato mixture. Add the remaining milk.
Daikon radish has almost no flavor of its own but will take the flavors and shapes of many other things, with potatoes at the head of the list. In the low carb and diabetic worlds most people seem to be looking for really good low carb substitutions for potatoes, rice, sugar, and wheat and the daikon radish is it for potatoes.