01 - Pat chicken breasts completely dry with paper towels. Season both sides generously with salt and black pepper. Lightly dredge each piece in flour, shaking off excess.
02 - Heat olive oil in a large skillet over medium-high heat until shimmering. Add chicken breasts and sear for 4 to 5 minutes per side until golden brown and cooked through. Transfer to a plate and tent loosely with foil.
03 - Reduce heat to medium. Add butter to the same skillet and melt. Sauté minced garlic for 1 minute until fragrant, being careful not to burn.
04 - Stir in chopped sun-dried tomatoes and dried Italian herbs. Cook for 2 minutes, stirring constantly to combine flavors.
05 - Pour in chicken broth and use a wooden spoon to scrape up browned bits from the bottom of the skillet, incorporating the flavorful fond into the liquid.
06 - Add heavy cream, grated Parmesan, lemon juice, and red pepper flakes if using. Simmer for 3 to 4 minutes, stirring occasionally, until sauce thickens enough to coat the back of a spoon.
07 - Return chicken to the skillet along with any accumulated juices. Spoon sauce over the top and simmer for 5 minutes until chicken is heated through. Garnish with chopped fresh basil or parsley and serve immediately.