Creating Easy Cajun Chicken Étouffée can be straightforward if you follow these simple steps:

1. Heat Oil: In a large skillet or Dutch oven, heat the vegetable oil over medium heat.
2. Make Roux: Sprinkle the flour into the oil, stirring constantly for about 5-7 minutes until it turns a golden brown color. This is your roux.
3. Add Vegetables: Stir in the chopped onion, bell pepper, and celery. Sauté for another 5 minutes until the vegetables are softened.
4. Garlic Time: Add the minced garlic and cook for an additional minute until fragrant.
5. Season Chicken: Add the diced chicken thighs to the skillet. Sprinkle with Cajun seasoning, salt, black pepper, and cayenne pepper if using. Stir to coat the chicken in the spices.
6. Add Broth: Pour in the chicken broth, stirring well to combine. Bring the mixture to a simmer.
7. Simmer: Reduce heat and let it simmer for about 20 minutes, letting the flavors meld and the chicken cook through.
8. Cream It Up: Stir in the heavy cream and cook for an additional 5 minutes until heated through and slightly thickened.
9. Taste and Adjust: Taste the étouffée and adjust the seasoning if needed.
10. Serve: Remove from heat and serve over a bed of cooked white rice. Garnish with sliced green onions.

These steps will guide you in creating this incredible dish with ease.