Prep the chicken: Slice large chicken breasts horizontally to create thin cutlets.
Pat dry. Season both sides with salt, pepper, garlic powder, onion powder, and paprika.
Heat the pan: Set a large skillet over medium-high heat. Add olive oil and 1 tablespoon butter.
Sear the chicken: When the fat shimmers, add chicken in a single layer.
Cook 3–4 minutes per side until golden and just cooked through. Transfer to a plate and tent with foil.
Sauté aromatics: Reduce heat to medium. Add remaining 1 tablespoon butter and the minced garlic.
Cook 30–60 seconds until fragrant. Don’t brown the garlic.
Deglaze: Pour in chicken broth. Scrape up any browned bits from the pan.
Simmer 2–3 minutes to reduce slightly.
Add cream and lemon: Stir in heavy cream, lemon zest, and 2 tablespoons lemon juice. Simmer gently for 2–3 minutes, stirring, until slightly thickened.
Finish with Parmesan: Whisk in Parmesan until melted and the sauce is smooth. Taste and add more lemon juice, salt, and pepper as needed.
For heat, add a pinch of red pepper flakes.
Return the chicken: Add chicken and any juices back to the pan. Spoon sauce over the top. Simmer 2 minutes to warm through and let flavors meld.
Garnish and serve: Sprinkle with chopped parsley or chives.
Serve with sautéed spinach, roasted broccoli, or zucchini noodles to keep it low carb.