PURPLE POTATO VICHYSSOISE WITH ROASTED GARLIC

Purple Potato Vichyssoise with Roasted Garlic image

Provided by Bob Blumer - Host of Surreal Gourmet and Glutton for Punishment

Categories main-dish

Time 2h47m

Yield 4 to 6 servings

Number Of Ingredients 12

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1 whole bulb garlic
1 teaspoon olive oil
1 tablespoon butter
2 large leeks, white and light green parts only, coarsely chopped and thoroughly washed
1 cooking onion, chopped
3/4 cup dry white wine
8 purple potatoes, or 4 medium Yukon gold or russet potatoes, peeled and sliced or diced
6 cups vegetable broth or chicken stock
1/2 teaspoon salt
1/2 teaspoon white pepper
4 sprigs fresh sage, or 1 tablespoon dried sage
3 cups whole milk

Steps:

Preheat the oven to 350 degrees F.
Cut off the top 1/4 of the pointy end of the garlic bulb so that all of the cloves are exposed. Drizzle with olive oil, wrap in aluminum foil and bake for about 1 hour, or until the top is browned and the individual cloves are soft throughout. Let cool.
Melt the butter in a soup pot over medium-high heat. Add the leek and onion and stir for about 5 minutes, or until they are translucent but not yet brown. Add the wine and cook for 2 more minutes.
Add the potatoes and stock. Bring to a boil, then reduce heat to medium-low and simmer for 40 minutes. (Adjust heat as required to simmer.)
Add the salt, pepper, and sage. Let the soup cool.
Extract the individual garlic cloves (squish them all out by applying pressure to the bottom of the bulb, or remove them individually with an escargot fork). Add them to the stockpot.
If using fresh sage, remove sprigs, then puree the soup in a blender or food processor. Refrigerate for a minimum of 1 hour.
Just before serving, add 1 part milk for every 3 parts soup, and blend in a blender for 15 seconds to aerate. Serve cold in chilled bowls.