Prep the chicken: Cut large chicken breasts in half horizontally to create thinner cutlets.
Pat dry. Season both sides with salt, pepper, paprika, and onion powder.
Heat the skillet: Set a large skillet over medium-high heat. Add olive oil and 1 tablespoon butter.
Sear the chicken: When the fat is hot and shimmering, add the chicken in a single layer.
Don’t crowd the pan. Cook 4–6 minutes per side, until golden and cooked through (internal temp 165°F/74°C). Transfer to a plate and tent loosely with foil.
Make the garlic base: Reduce heat to medium.
Add 1 tablespoon butter to the skillet. Add minced garlic and cook 30–60 seconds, stirring, until fragrant. Don’t let it burn.
Build the sauce: Pour in chicken broth (or wine) and scrape up the browned bits with a wooden spoon.
Simmer 2–3 minutes to reduce slightly. Stir in lemon juice, Dijon, and red pepper flakes if using.
Finish with butter and herbs: Swirl in the final 1 tablespoon butter until glossy. Add parsley and a few thyme leaves if you like.
Taste and adjust with more salt, pepper, or lemon.
Return the chicken: Add the chicken and any juices back to the skillet. Spoon sauce over the top and simmer 1–2 minutes to warm through.
Serve: Garnish with extra herbs and lemon wedges. Serve over rice, pasta, mashed potatoes, or roasted vegetables.