This dish combines the Edwardian love for capers/salty appetizers in a fancy entrée. As this is a relatively inexpensive yet still elegant dish to offer, this would be a staple for Downton Abbey dinners when no guests are present.
Thoroughly season the chicken breasts with the lemon pepper, sea salt, black pepper, dill, and garlic powder. Then marinate the chicken breasts for at least 2 hours in the lemon juice.
Melt the butter in a large skillet over medium heat. Add the garlic and sugar, and sauté for 5 minutes. Place the breasts in a skillet and increase the heat to medium-high. Turn the chicken frequently until brown, about 5 minutes. Reduce the heat to medium and cook the breasts for 5-7 minutes or until they're cooked through. Remove the chicken, cover with foil, and keep warm.
Increase the heat to high, and whisk in the wine and the heavy cream. Whisk until the mixture is reduced to a sauce like consistency, about 2-3 minutes. Remove from the heat, then stir in the capers. Pour the sauce over the chicken breasts and serve.