01 - Pat the chicken breasts dry and season both sides with salt and black pepper. Lightly dredge each breast in flour, shaking off any excess.
02 - Heat olive oil in a large skillet over medium-high heat. Add chicken breasts and sear for 4–5 minutes per side, until golden brown and cooked through. Remove chicken and set aside.
03 - In the same skillet, reduce heat to medium. Add butter and minced garlic; sauté until fragrant, about 1 minute.
04 - Stir in sundried tomatoes and cook for 1 minute. Pour in chicken broth and bring to a simmer, scraping any browned bits from the pan.
05 - Add heavy cream and Parmesan cheese. Stir until the cheese melts and the sauce thickens slightly, about 3–4 minutes.
06 - Add spinach and cook until just wilted.
07 - Return chicken breasts to the skillet, spooning sauce over the top. Simmer for 3–4 minutes to heat through and blend flavors. Garnish with fresh basil if desired. Serve hot.