A rich and velvety Italian soup featuring spicy sausage, buttery Yukon Gold potatoes, and fresh kale in a savory Parmesan-infused broth for the ultimate comfort meal.
Set a stockpot or Dutch oven over medium heat and add the ground spicy Italian sausage. Cook for about 5 minutes, breaking it into small chunks, until deep brown edges appear.
Scoop the sausage into a bowl and reserve 2 tablespoons of the drippings in the pot. If needed, add enough oil to reach 1 tablespoon of fat.
Build the aromatic roux
Add the diced white onion, minced garlic, and salt to the drippings. Stir often for about 3 minutes until the onion is translucent and fragrant.
Sprinkle in the all-purpose flour and stir constantly for 1 minute until the flour coats the onions and emits a faint nutty aroma.
Simmer until the potatoes go buttery-tender
Add the cubed Yukon Gold potatoes and pour in the chicken broth. Scrape the bottom of the pot to release the browned bits (fond) into the soup.
Bring the pot to a boil, then immediately lower to medium-low. Simmer for about 10 minutes until a fork slides into the potatoes with almost no resistance.
Finish gently for a creamy, velvety pot
Stir in the chopped kale, the reserved cooked sausage, heavy cream, and black pepper. Keep the heat gentle and simmer for 5 minutes until the kale wilts and the broth is unified.
Notes
The Parmesan rind trick: Simmer a leftover Parmesan rind in the broth while the potatoes cook to add a nutty, savory depth. Remove it before serving.The tiny nutmeg finish: Add a small pinch of freshly grated nutmeg after the cream to round out the flavor and soften the bitterness of the kale.The kale massage: If using curly kale, squeeze it with your hands for 30 seconds before adding it to the pot to ensure it turns out tender rather than tough.The salt fix: If the soup becomes too salty from the sausage or broth, simmer an extra peeled potato half in the pot for 10 minutes to absorb excess salt, then discard.Nutrition information is estimated based on common ingredients and serving sizes and may vary.