Chorizo and Potato Stew

Name: Chorizo and Potato Stew
Ingredients: 6 bacon slices, chopped; 2 medium sweet onions, finely chopped; 8 garlic cloves, thinly sliced; 3 Tbsp. tomato paste; 2½ lb. russet potatoes, peeled, cut into ¾ pieces; 2 lb. smoked Spanish chorizo, cut into rounds, halved into half-moons; 1 lb. button mushrooms, cut into ½-thick wedges; 8 cups low-sodium chicken broth; ⅓ cup hot smoked Spanish paprika; ½ tsp. cayenne pepper; Kosher salt; 1 cup sour cream; 2 cups torn dill; Freshly ground black pepper