Start by slicing the chicken breasts in half horizontally so you get four thin cutlets. In a small bowl, mix lemon zest, salt, and pepper. Rub this zesty seasoning all over the chicken. This adds a punch of bright flavor right at the start.
Heat 1 tablespoon of butter and olive oil in a skillet over medium-high heat. Add the seasoned chicken and sear each side for 3–4 minutes until golden brown and fully cooked (165°F inside). Once done, brush them with lemon juice while they rest. This keeps the chicken juicy and infuses it with fresh flavor.
Wipe out the skillet and melt the remaining 2 tablespoons of butter. Add the garlic and sauté for about a minute until it smells amazing. Sprinkle in the flour and stir—it’ll look a bit thick. This roux is what will make your sauce rich and smooth.
Slowly pour in your milk and cream while whisking nonstop. This keeps the sauce silky and lump-free. Keep cooking on medium heat, stirring every so often until it’s thick and bubbly.
Remove the sauce from heat and stir in Parmesan cheese. It’ll melt right in. Now fold in your cooked linguine. Add a splash of pasta water if the sauce feels too thick. Season with extra salt and pepper if needed.
Slice your chicken into thin strips and place them on top of the creamy pasta. Sprinkle with parsley, more lemon zest, and extra Parmesan for a beautiful finish. Serve warm and enjoy every bite.