In a 4-quart pan, MELT butter.
STIR in flour until smooth.
Gradually ADD milk, STIRRING constantly until thickens. ADD potatoes, onion, bacon, salt, and pepper.
REDUCE heat and SIMMER for 15 minutes.
ADD remaining ingredients. STIR until sour cream and cheese is melted.
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Fresh hot bowl of Baked Potato Soup:
