01 -
Pat chicken dry and season both sides evenly with salt, black pepper, and Italian seasoning. If using whole chicken breasts, slice in half horizontally for even thickness.
02 -
Bring a large pot of salted water to a boil. Add rotini and cook until al dente, according to package directions. Before draining, reserve 120 millilitres of pasta water.
03 -
Heat 1 tablespoon butter and the olive oil in a large skillet over medium-high heat. Place chicken in the skillet and sear for 4–5 minutes per side until golden and cooked through. Remove chicken and set aside; keep warm.
04 -
In the same skillet, melt remaining 2 tablespoons butter over medium heat. Stir in minced garlic and cook for 30 seconds until aromatic. Pour in chicken broth and simmer, scraping up any browned bits from the pan.
05 -
Reduce heat to low and gradually add heavy cream and Parmesan cheese, whisking constantly until smooth. Adjust the sauce consistency as needed with reserved pasta water.
06 -
Return chicken to the pan, spoon sauce over the top, then add cooked rotini. Gently toss pasta and chicken to coat in the sauce. Simmer for 2 minutes so flavours meld.
07 -
Sprinkle with chopped parsley and red pepper flakes if using. Serve immediately while hot.