Chop, dice, and measure all your ingredients.
On medium-high heat, in a medium-large pot or dutch oven, add 1 tablespoon of butter.
Add onion, celery, carrots, and garlic and cook until slightly softened. Cook over medium heat for about 3-4 minutes.
Stir in potatoes, spicy chicken sausage, sage, and let cook for about 2 minutes.
Add ground cumin and stir.
Add chili powder and stir for 1-2 minutes.
Add Worcestershire and stir.
Add Dijon Mustard and stir.
Add heavy cream and stir.
Add red Chili Flakes and stir.
Add chicken stock and stir and turn heat to high and bring soup to a boil.
Add thyme and a pinch of salt and stir. Let it simmer on low for 20-25 mins.
Simmer soup on low for about 10-15 more minutes. Taste, add salt and pepper if desired.
Add kale a handful at a time and stir.
Add a pinch of salt and pepper.