Making Spicy Nigerian Chicken Stew can be straightforward by following these steps:

1. Prep the Chicken: Rinse the chicken pieces under cold water and pat dry with paper towels. Season with salt, pepper, and half of the thyme. Set aside.
2. Heat the Oil: In a large pot, heat the vegetable oil over medium heat.
3. Sauté Onions: Add the chopped onions and sauté until translucent, about 5-7 minutes.
4. Add Garlic and Ginger: Stir in the minced garlic and grated ginger, cooking for another 2 minutes until fragrant.
5. Incorporate Tomatoes: Pour in the blended tomatoes and tomato paste. Cook for about 10 minutes until the mixture thickens and the oil begins to separate.
6. Spice it Up: Add ground crayfish (if using), Scotch bonnet peppers, curry powder, and the remaining thyme. Stir well to combine.
7. Cook the Chicken: Place the seasoned chicken pieces into the pot and stir to coat with the sauce. Cook for about 10 minutes, allowing the chicken to absorb the flavors.
8. Add Broth: Pour in the chicken broth, ensuring the chicken is submerged. Bring to a boil, then reduce heat to low. Cover and simmer for about 30 minutes.
9. Add Vegetables: After 30 minutes, add the sliced carrots and bell pepper. Stir and cook for an additional 10-15 minutes until the vegetables are tender.
10. Taste and Adjust: Taste the stew and adjust seasoning with salt and pepper as needed. If you want more heat, add more Scotch bonnet peppers.
11. Garnish: Remove from heat and garnish with fresh herbs before serving.

Following these steps will lead you to create an incredible pot of Spicy Nigerian Chicken Stew that is sure to impress!