In a large Dutch oven or soup pot over medium-high heat, add the oil. Stir in the red pepper flakes and garlic and cook until the garlic begins to brown, about 1 to 2 minutes. Add the sausage and cook until slightly browned, about 2 to 3 minutes. Stir in the onion, celery, and jalapenos. Cook until the vegetables soften, about 1 to 2 minutes, then add the flour and cook, stirring frequently, to form a roux. Whisk in the stock, molasses, bay leaves and cumin. Bring to a simmer and cook for 7 to 8 minutes. Stir in the beans, chicken, salt, and pepper. Cook until the chicken is warmed through and the stew has thickened, about 5 to 7 minutes. Transfer the stew to a large serving bowl and garnish with scallions. Serve.