Begin by marinating the chicken. In a large mixing bowl, combine the buttermilk, garlic powder, onion powder, paprika, salt, and pepper. Add the chicken pieces and ensure they are well-coated. Cover and let marinate in the refrigerator for at least 1 hour (or overnight for best results).

Meanwhile, prepare the collard greens. In a large pot, heat 1 tablespoon of olive oil over medium heat. Add the chopped onion and sauté until translucent. Stir in the minced garlic and cook for an additional minute.

Add the collard greens to the pot, followed by the chicken broth. If using, sprinkle in the red pepper flakes and season with salt. Cover and let the greens simmer for about 30 minutes, or until tender.

While the collard greens are cooking, prepare the cornbread. Preheat your oven to 400°F (200°C). In a mixing bowl, whisk together the cornmeal, sugar, baking powder, baking soda, and salt.

In another bowl, whisk together the buttermilk, eggs, and melted butter. Combine the wet and dry ingredients until just mixed.

Grease a baking dish and pour in the cornbread batter. Bake in the preheated oven for 20-25 minutes or until golden brown and a toothpick comes out clean.

Next, fry the chicken. In a large skillet, heat oil over medium-high heat. Dredge each piece of marinated chicken in the flour, shaking off excess. Once the oil is hot, carefully add the chicken to the skillet.

Fry for about 12-15 minutes on each side, or until golden brown and cooked through (internal temperature should reach 165°F or 74°C).

Remove the fried chicken and drain on paper towels to absorb excess oil.

Serve the fried chicken, collard greens, and cornbread on warm plates to enjoy a classic soul food dinner.