2 pounds russet potatoes, peeled and cut int 1/2-inch pieces
6 cups low sodium chicken broth
2 tablespoons extra virgin olive oil
2 medium onions, chopped
5 garlic cloves, minced
6 ounces cured chorizo sausage, cut into 1/4-inch thick slices
6 cups chopped fresh kale
1/2 teaspoon salt
1/4 teaspoon ground black pepper