The beloved bean soup has been served in the Senate Dining Room since 1903.

As the story goes, on September 14, 1943, wartime rationing left the cafeteria short on beans.

Its easy to see whyCapitol Hill Bean Souphas become a staple in homes through generations.

Capitol Hill Bean Soup - Southern Living

Credit:Greg DuPree; Prop Styling: Mindi Shapiro Levine; Food Styling: Torie Cox

Though it needs a few hours of simmering, it requires little attention and inexpensive ingredients.

First, you soak dried white navy beans overnight.

The tender meat is added in, along with a mashed Russet potato, which thickens the soup.

Season simplysalt and pepperand add a bit of fresh parsley for a pop of color.

(Presumably, a nod to his home state.)

The senators variations on the recipe can still be foundonline.

As Redditors pointed out, Senate Bean Soup is served up every day atMcGuires Irish Pubin Pensacola, Florida.

Navy Bean Soup is usually the reason I’m excited to get a ham, one Reddit user confirms.

We recommend a side ofNo-Knead Buttermilk Breadfor a recipe as special as this.