Mix first 4 ingredients and 1/2 teaspoon orange peel in small bowl. Season sauce with salt and pepper. Combine yellow cornmeal, flour and remaining 1 teaspoon orange peel in medium bowl. Sprinkle oysters with salt and pepper; coat with cornmeal mixture. Heat oil in large skillet over medium-high heat. Add oysters and fry until golden and crusty, turning once, about 5 minutes. Transfer to paper towels; drain. Serve oysters with sauce.