Prep and Tenderize
Filet chicken breasts horizontally into cutlets, cover with plastic wrap, and pound to ¼-inch thickness. Season both sides with salt, pepper, and optional garlic powder.Dredge
Combine gluten-free 1-1 flour and cornstarch in a shallow dish (stir in optional paprika and garlic). Pat cutlets dry, dredge both sides in the mixture, and shake off any excess.Sear the Chicken
Heat olive oil and butter in a skillet over medium-low heat until shimmering. Sear cutlets in batches for 2 to 3 minutes per side until golden brown. Transfer to a plate and tent loosely with foil.Build the Sauce
Pour white wine and certified gluten-free chicken stock into the pan, scraping up browned bits. Simmer for 4 to 5 minutes until reduced by half. Remove from heat, whisk in cold butter until emulsified, return pan to low heat, and stir in drained capers.Finish and Coat
Taste sauce and adjust salt, then whisk in fresh lemon juice to taste. Return cutlets to the skillet, coating them in sauce until warmed through and thickened.Plate and Serve
Plate chicken immediately, spoon generous pan sauce over top, and garnish with fresh lemon slices and chopped parsley.