This is real comfort food, not diet food! The flavors of the creamy sauce with the baked potatoes are married together so well that it's hard to put down. I prefer to put the crumbled bacon and cheese on top of the soup because it adds another layer of flavor, but if you like yours combined, it may be done that way also.
This is real comfort food, not diet food! The flavors of the creamy sauce with the baked potatoes are married together so well that it's hard to put down. I prefer to put the crumbled bacon and cheese on top of the soup because it adds another layer of flavor, but if you like yours combined, it may be done that way also.
Using raw or hastily boiled tubers instead of properly baked russets remains the single biggest error in making potato soup. Historically rooted in rural American traditions where residual oven heat from baking bread was utilized to cook vegetables, authentic potato soup relies on the mealy texture of baked potatoes. Russet potatoes contain a high starch content and low moisture level, yielding a fluffy interior that absorbs dairy cleanly when cubed and folded into a velouté base. Boiling potatoes directly in liquid releases too much free starch into the broth, creating a gummy paste rather than a velvety potage.
Melt butter in a heavy-bottomed Dutch oven over medium-low heat to prevent scorching the milk solids. Whisk all-purpose flour directly into the melted fat, cooking the mixture for one to two minutes to eliminate the raw flour taste before introducing liquids. Pour cold milk into the warm roux in a slow, steady stream while whisking vigorously to prevent lumps from forming. Bring the mixture to a boil, stirring constantly for exactly two minutes until starches gelatinize and the sauce thickens adequately. Remove the pot from direct heat before whisking in the sour cream, as high heat causes dairy proteins to curdle and separate.