INSTRUCTIONS
1. Preheat the oven to 500 °F (260 degrees C). Line a rimmed baking sheet with foil.
2. Place tomatillos, garlic head, and poblano pepper on the prepared baking sheet.
3. Roast in the oven for 30 minutes. Remove from the oven and let cool.
4. Heat oil in a Dutch oven over medium heat. Add andouille sausage and cook until slightly crispy, 5 to 7 minutes. Remove sausage to a plate.
5. Add onion, celery, and carrot to the Dutch oven; cook for 5 minutes. Add cumin and chile powder; stir and cook for 5 to 7 minutes. Stir in cannellini beans and cook for 3 to 5 minutes.
6. Meanwhile, remove and discard skins from tomatillos, garlic, and poblano pepper. Transfer to a food processor and blend until combined.
7. Add liquified tomatillo mixture to the Dutch oven, along with chicken broth and cooked sausage. Cover, reduce heat to medium-low, and simmer for 25 minutes.
8. Ladle into bowls and garnish with cilantro and jalapeno slices.