Old-Fashioned Broccoli Cheddar Soup

Why This Old-Fashioned Broccoli Cheddar Soup Works

Butter and onions start things off by slowly softening in the pot. As the onions cook, they lose their sharp bite and taste a little sweeter, which gives the soup a mellow base. When the flour goes in, it coats the butter and onions and forms a paste. Once the chicken broth is added, that flour swells up in the hot liquid and starts to thicken everything so the soup won’t be thin or watery.

As the broccoli simmers in that hot broth, it softens all the way through. After a while, the stems and florets are tender enough to blend smoothly. Blending breaks the broccoli into tiny pieces, which makes the soup naturally thick and creamy even before the dairy goes in.

When the heavy cream and cheddar are stirred into the hot soup, the cheese melts and spreads through the pot instead of clumping. The earlier flour thickening keeps the cheese and cream from separating, so the soup stays smooth, rich, and slightly thick. A little nutmeg at the end warms up the taste without taking over.

Mistakes To Avoid

Letting the flour sit in the pot without whisking in the broth right away can make it clump. The dry bits of flour don’t fully blend into the liquid and stay as little lumps. The soup then ends up with a grainy, pasty texture instead of being smooth and creamy.

Pouring in the cream and cheese while the soup is boiling hard often causes the dairy to split. The fat pulls away from the liquid and the cheese turns stringy instead of melting evenly. The finished soup looks oily on top and feels slightly curdled in the mouth.

Cooking the broccoli until it is falling apart before blending can backfire. The florets start to lose their bright color and the flavor turns dull and cabbage-like. The soup can end up a murky green with a slightly sulfur smell instead of a fresh broccoli taste.

Using pre-shredded bagged cheddar instead of freshly grated cheese often makes the soup less smooth. The anti-caking coating on the shreds keeps them from melting fully. The soup can stay a bit gritty and stretchy instead of velvety.