This is the perfect soup for a cool winter evening.

Serve alongside a grilled cheese sandwich or a crisp, green salad.

It’s made with potatoes, leeks, celery, broth, and a handful of herbs and spices.

Potato Leek Soup

Credit:Caitlin Bensel; Food Styling: Torie Cox

You could end it there, blend it up, and have a rich and comforting dinner.

This tart dairy product adds body, bolstering the potatoes' rich texture, and a bit of tang.

Garlic, spices, and buttermilk add the flavor.

ingredients for potato leek soup

Credit:Caitlin Bensel; Food Styling: Torie Cox

Yes, you’ll need to stir and monitor the celery and leeks as they cook down and brown.

Then you’ll come back to finish off the soup.

Add the buttermilk, and blend until the soup is creamy.

stirring celery and leeks

Credit:Caitlin Bensel; Food Styling: Torie Cox

What Kind of Potatoes Do You Use in Potato Leek Soup?

For the creamiest potato leek soup, its important to use russet potatoes.

They have a starchy quality, unlike other potatoes, which result in a light and smooth final soup.

blended soup

Credit:Caitlin Bensel; Food Styling: Torie Cox

Stir in the garlic and marjoram and cook for 1 minute.

Season to taste with salt and pepper.

Add the potatoes and broth and bring to a boil over high heat.

melted butter in dutch oven

Credit:Caitlin Bensel; Food Styling: Torie Cox

Reduce to a gentle simmer and cook until the potatoes fall apart, about 15 minutes.

Turn off the heat and stir in the buttermilk.

Let the soup cool slightly.

leeks and celery in dutch oven

Credit:Caitlin Bensel; Food Styling: Torie Cox

Use an immersion blender to blend the soup until just smooth (be careful not to over-blend).

For a finer texture, strain the soup through a fine-mesh strainer into a clean pot.

Reheat over low heat, whisking frequently.

seasoned leeks and celery

Credit:Caitlin Bensel; Food Styling: Torie Cox

Season to taste with salt and pepper.

Serve with chopped celery leaves or parsley.

boiling potatoes, leeks, celery

Credit:Caitlin Bensel; Food Styling: Torie Cox

buttermilk in potato soup mixture

Credit:Caitlin Bensel; Food Styling: Torie Cox

immersion blender in dutch oven blending soup

Credit:Caitlin Bensel; Food Styling: Torie Cox