Season chicken with salt and pepper. Heat oil in a large skillet over medium heat. Add chicken breasts and cook for 5-7 minutes per side, until golden brown and mostly cooked through. Remove to a plate and cover to keep warm.
Add the onion, bell pepper and garlic to the skillet and cook for about 5 minutes, or until vegetables begin to soften.
In a small bowl, whisk together the chicken stock and cornstarch. Add to the skillet, along with the red chili flakes and turmeric. Bring to a simmer, stirring occasionally, until sauce thickens slightly.
Stir in the coconut milk and simmer for another 3-5 minutes. Stir in the lime juice and cream, then return the chicken to the pan. Season with salt and pepper, to taste. Continue to cook for an additional 5-10 minutes, or until chicken is completely cooked through. Sprinkle with fresh cilantro before serving.